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How Can Continuous Integration (CI) Improve Your React Native Apps?

2023-02-13
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The following article is a part of The Ultimate Guide to React Native Optimization and describes how to improve your apps through Continuous Integration (CI). It’s been co-authored by Expo, who shared their insights on setting up EAS Build and running your build on it.

Why is it important?

A lack of working Continuous Integration may seriously harm your apps on many different levels. It can slow down the development process and testing, and expose your final app to bugs and regressions that may decrease your income. In this article, I'll show you how to bulletproof your React Native app for such unpleasant situations with Continuous Integration.

In the previous parts of our guide, we have discussed:

Check them out later, and now let's jump into the main topic.

Many faces of feedback loop in app development

As you have already learned from our other article in this series, covering your code with tests can be very helpful for increasing the overall reliability of your app. However, while testing your product is vital, it is not the only prerequisite on your way to shipping faster and with more confidence.

Equally important is how quickly you detect the potential regressions and whether finding them is a part of your daily development lifecycle. In other words – it all comes down to the feedback loop.

How long feedback loop (and no CI) can harm your React Native project

For better context, let’s take a look at the early days of the development process. When you’re starting out, your focus is on shipping the first iteration (MVP) as fast as possible. Because of that, you may overlook the importance of the architecture itself. When you’re done with the changes, you submit them to the repository, letting other members of your team know that the feature is ready to be reviewed.

An example of workflow on Github where changes are proposed in a form of a PR graph
An example of workflow on Github where changes are proposed in the form of a PR.

While this technique can be very useful, it is potentially dangerous on its own, especially as your team grows in size. Before you’re ready to accept a PR, you should not only analyze the code, but also clone it to your environment and test it thoroughly. At the very end of that process, it may turn out that the proposed changes introduce a regression that the original author hasn’t spotted.

The reason for that is simple - we all have different configurations, environments, and ways of working.

concept of correct code
It’s harder to onboard new members to your organization. You can’t ship and test PRs and different contributions as they happen.

If you’re testing your changes manually, you’re not only increasing the chances of shipping regressions to production. You’re also slowing down the overall pace of the development. Thankfully, with the right set of methodologies and a bit of automation, you can overcome this challenge once and for all.

What is Continuous Integration and how does it work?

This is when Continuous Integration (CI) comes into play. CI is a development practice where proposed changes are checked-in to the upstream repository several times a day by the development team. Next, they are verified by an automated build, allowing the team to detect changes early.

The automated builds are performed by a dedicated cloud-based CI provider that usually integrates with the place where you store your code. Most cloud providers available these days support Github, a Microsoft-owned platform for collaborating on projects that use git as their version control system.

CI systems pull the changes in real-time and perform a selected set of tests, to give you early feedback on your results. This approach introduces a single source of truth for testing and allows developers with different environments to receive convenient and reliable information.

Using a CI service, you can not only test your code but also build a new version of documentation for your project, build your app, and distribute it among testers or releases. This technique is called Continuous Deployment and focuses on the automation of releases.

<p-bg-col>Following the Circle CI section, you'll find a section on EAS Build in this chapter. Why? We believe having a subsection about EAS Build also helps developers achieve results as with CircleCI.<p-bg-col>

Using a Continuous Integration provider to build your React Native app

There are a lot of CI providers to choose from, with the most popular being CircleCI, GitHub Actions, and Bitrise. For React Native applications, another option is EAS Build, a service created by Expo with first-class support for React Native.

We have selected CircleCI as our reference CI provider for the purpose of this section, as it has broad community adoption. In fact, there is an example project demonstrating the use of CI with React Native. You can learn more about it here. We will employ it later in this section to present different CI concepts.

We will also dive into EAS Build, which is designed to make building and testing applications as easy as possible. It also helps with distributing app binaries to the stores and internally amongst your team.

<p-bg-col>Note: A good practice is to take advantage of what React Native / React Native Community projects already use. Going that route, you can ensure that it is possible to make your chosen provider work with React Native and that the most common challenges have been already solved by the Core Team.<p-bg-col>

‍How to set up CI with CircleCI

With most of the CI providers, it is extremely important to study their configuration files before you do anything else.

Let’s take a look at a sample configuration file for CircleCI, taken from the mentioned React Native example:

The structure is a standard Yaml syntax for text-based configuration files. You may want to learn about its basics before proceeding any further.

<p-bg-col>Note: Many CI services, such as CircleCI or Github Actions, are based on Docker containers and the idea of composing different jobs into workflows. Github and its Github Actions is an example of such provider. You may find many similarities between those services.<p-bg-col>

Commands, jobs, and workflows in CircleCI configuration

There are three most important building blocks of a CircleCI configuration: <rte-code>commands<rte-code>, <rte-code> jobs<rte-code>, and <rte-code>workflows<rte-code>.

<rte-code>command<rte-code> is nothing more but a shell script. It is executed within the specified environment. Also, it is what performs the actual job in the cloud. It can be anything, from a simple command to install your dependencies, such as <rte-code>yarn install<rte-code> (if you’re using Yarn) to a bit more complex one <rte-code>./gradlew assembleDebug <rte-code> that builds Android files.

<rte-code>job<rte-code> is a series of commands - described as steps - that is focused on achieving a single, defined goal. <rte-code>jobs<rte-code> can be run in different environments, by choosing an appropriate Docker container.

For example, you may want to use a Node container if you need to run only your React unit tests. As a result, the container will be smaller, have fewer dependencies, and will install faster. If you want to build a React Native application in the cloud, you may choose a different container, e.g. with Android NDK/SDK or the one that uses OS X to build Apple platforms.

To help you choose the container to use when running React Native tests, the team has prepared react-native-android Docker container that includes both Node and Android dependencies needed to perform the Android build and tests.

In order to execute a <rte-code>job<rte-code>, it has to be assigned to a <rte-code>workflow<rte-code>. By default, <rte-code>jobs<rte-code> will be executed parallelly within a workflow, but this can be changed by specifying requirements for a <rte-code>job<rte-code>.

Example of Workflow chart
Workflow contains jobs that can be grouped to run in a sequence or in parallel

You can also modify the job execution schedule by adding filters, so for instance a deploy job will run only if the changes in the code refer to a master branch.

You can define many workflows for different purposes, e.g. one for tests that would run once a PR is opened, and the other to deploy the new version of the app. This is what React Native does to automatically release its new versions every once in a while.

Setting up EAS Build

EAS stands for Expo Application Services. One of the services it provides is EAS Build. In contrast with a generic CI provider, it is designed for building and testing React Native applications, handles app-signing credentials and internal distribution amongst your team members, and also closely integrates with EAS Submit to automate app store submissions.

EAS Build is a managed service. This means many workflow steps that are traditionally manually defined in a generic CI provider are handled automatically. It also uses a new build environment for each build job with the tools such as the Java JDK, the Android SDK and NDK, Xcode, Fastlane, etc. already installed.

You can get started by following just a few steps below on your development computer. After these steps, you will have set up your project for EAS, configured your build profile, and started a build job.

‍Running an EAS Build

First, install the <rte-code>eas-cli<rte-code> package by running this command in your terminal:

Or, you can use <rte-code>npx eas-cli<rte-code> to run the commands if you’d like to avoid installing a global dependency.

Setting up EAS Build

Next, initialize a configuration file for EAS Build and run this command in the root directory of your project:

This command will create a file named <rte-code>eas.json<rte-code> in the root directory of your project. It contains the whole config for EAS to run properly.

Your project may need some additional configuration for cases like using a monorepo. Read this guide to see how to configure your build profile further.

<rte-code>eas.json<rte-code> is a text-based configuration file that uses standard JSON syntax. Inside, you will find a top-level field named <rte-code>build<rte-code>. This field contains a JSON object with all of the configuration that defines your app’s build profiles. A <rte-code>build profile<rte-code> is a named group of configuration options that describe the necessary parameters to create specific types of builds, like for internal distribution or an app store release.

The JSON object under <rte-code>build<rte-code> contains multiple profiles. By default, the <rte-code>development<rte-code>, <rte-code>preview<rte-code>, and <rte-code>production<rte-code> are the three build profiles provided. The <rte-code>development profile<rte-code> is for debug builds that include developer tools and is mainly used during development and testing. The <rte-code>preview<rte-code> profile doesn’t include developer tools and is for builds intended to be shared with your team when testing your app in a production-like environment. Finally, the production profile is for release builds that are submitted to app stores.

You can define additional custom profiles under the build field for specific types of builds to best fit your project and team’s needs. Additionally, each profile can also have platform-specific configuration for Android and iOS.

Running your build on EAS Build

Any type of build can be triggered from a single command. For example, you can use <rte-code>preview<rte-code> profile to share the app with your team for testing:

The <rte-code>--platform all<rte-code> option lets you build for Android and iOS at the same time.

A build profile that has its <rte-code>distribution<rte-code> field set to <rte-code>“internal”<rte-code> (as shown in the example <rte-code>eas.json<rte-code> configuration earlier) configures EAS Build to provide shareable URLs. Once the build is complete, this URL can be shared with your teammates for internal distribution. By using the URL, any member of your team can download the app to their device.

You can modify a build profile anytime during the development lifecycle of your project. In some cases, additional configuration may be required or useful, like when working on a project inside a monorepo or sharing configuration between different profiles.

With CI, you get early feedback on added features, swiftly spot the regressions, and save time

‍A properly configured and working CI provider can save you a lot of time when shipping a new version of an application.

GitHub UI reporting the status of CircleCI jobs, an example taken from React Native repository

By spotting errors beforehand, you can reduce the effort needed to review the PRs and protect your product against regressions and bugs that may directly decrease your income.  

With a managed service tailored to Expo and React Native like EAS Build, caching JavaScript, Android, and iOS dependencies is done automatically. There is no need to configure your build steps for caching and all build jobs are accelerated by default.

Interested in improving your React Native app?

We are the official Facebook partners on React Native. We’ve been working on React Native projects for over 5 years, delivering high-quality solutions for our clients and contributing greatly to the React Native ecosystem. Our Open Source projects help thousands of developers to cope with their challenges and make their work easier every day. Our React Native development company offers a wide range of services.

Contact us if you need help with React Native or cross-platform development. We will be happy to provide a free consultation.

Author:
Mike Grabowski
Co-founder & Supervisory Board Member
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The super app landscape

What are super apps?

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Super apps are multipurpose platforms that integrate a wide range of services and features to answer diverse user needs, all within a single mobile interface. Comprised of modular mini apps that users can activate at their convenience, super apps are the software equivalent of Swiss army knives that deliver a powerful mobile-first experience.

Super apps act as a one-stop shop for customers, allowing them to perform everyday tasks like shopping, paying bills, communicating, and more, all in one place. They’re a powerful tool for businesses looking to captivate users with what Mike Lazaridis, Blackberry founder who coined the term in 2010, defined as a “seamless, integrated, contextualized and efficient experience.”

A good example of such an all-round experience is WeChat, a multipurpose app developed in China. Its core features include messaging, localization, a search engine, a news feed, payments, loans, public services, transportation, and housing – and that’s by no means a finished list. It shouldn’t be surprising that the number of active users on WeChat is estimated to reach 1.102 billion by 2025.

What do super apps offer?

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Super apps are made to meet the modern-day demand for smooth, convenient, all-encompassing mobile experiences. What makes them stand out, however, is the way they’re built and how they work. 

Ordinary mobile products offer a variety of features within a single application. Super apps, on the other hand, operate as a platform to deliver modular mini apps that users can activate for personalized experiences. The things that account for the super quality in super apps include:

  • range of services – while a mobile application typically serves a single purpose, a super app aims to be the only piece of software a user needs to perform a variety of actions across services or even industries, like Grab, WeChat, or Gojek.
  • all-in-one toolkit – traditional suites of applications released by tech giants like Google or Microsoft require users to switch between products to access different services. Super apps, on the other hand, shorten the customer journey by allowing users to achieve different goals within a single ecosystem without downloading multiple digital products.
  • data sharing – as opposed to ordinary apps that collect data related to a specific purpose only, super apps gather and process much more user data. While this may raise privacy and security concerns, properly-handled data sharing between respective services is a safe way to ensure an even smoother user experience.
  • financial services – there are limitless combinations of services that super apps may offer, from messaging, social networking, and e-commerce to transportation and health. However, as the examples of Gojek’s GoPay or WeChat Pay within WeChat Wallet show, built-in payment is one of the most prevalent. Super app users are usually required to provide their payment information only once for cross-service transactions – and they don’t need to leave the app to finalize the payment.

What’s the global landscape of super apps?

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Ever since the launch of WeChat in 2011, super apps have been on the rise. There has been a notable difference between the emerging and developed economies’ approach to this kind of digital products, though. 

Super apps have taken emerging markets by storm. Among the most notable all-in-one applications released in the last decade are Southeast Asia's leading platforms Grab and MoMo, Latin America-based Rappi, Middle East’s first super app Careem, and WhatsApp, which started turning into a super app in Brazil by launched in-app business directory and shopping features. There are a few reasons why super apps have been booming in developing countries:

  • mobile-first nations – the emerging economies didn’t experience the desktop revolution the same way the developer markets did. Only once smartphones hit the market did they get to easily access the internet, which made many Asian nations mobile-first consumers and contributed to the wide adoption of super apps.
  • unbanked population – a large percentage of unbanked populations was the issue that the emerging economies have struggled with for a long time. To give you an idea, in 2018, over 220 million adults in China, 190 million in India, and 99 million in Pakistan didn’t have a bank account. With financial services often lying at their core, super apps allow users to access their assets and make purchases through mobile devices.
  • regulators’ support – governments in emerging economies have been supporting super apps to drive technological advancement together. For example, WeChat’s been subsidized by the Chinese government since its creation in 2011, while Jakarta entered into a partnership with Grab, Gojek, and other local startups to accelerate the launch of the capital’s smart city project. 

While super apps have been proliferating across emerging markets, they’ve been struggling to gain traction in the West. Among the reasons why are:

  • consumers’ concerns with data security and privacy,
  • rigid data sharing and antitrust laws,
  • cut-throat competition between existing players in most verticals.

What does the super app market look like now, and how will it evolve?

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As of early 2023, 68% of the world’s population uses a mobile phone. Over the past year, the community of mobile users grew by 168 million individuals, and over 92% of all consumers use a mobile device to access the internet. These trends make the future look bright for businesses behind all sorts of mobile applications, including super apps, and translate into some promising numbers:

  • In 2022, the global super apps market size was valued at 61.30 billion U.S. dollars and was expected to expand at a compound annual growth rate of 27.8% until 2030. 
  • Gartner predicts that by 2027, over half of the population will be using multiple super apps daily, and their adoption will take place on both personal and enterprise levels. 
  • The survey conducted by statistics bureaus of the US, UK, Germany, and Australia estimated the number of potential day-one users for super apps is estimated to reach 98 million, which would result in an estimated 3.25 trillion U.S. dollars in annual spending on a super app by early-adoption users.

Super apps are widely adopted in Asia, the Middle East, Latin America, and Africa, but developed economies aren’t exempt from this global tech trend. The key to success in the US and Europe is to understand the distinctive needs and qualities of the Western markets. Having that in mind, Deloitte proposed the following direction for super apps in developed countries:

  • Having an established brand with developed user trust will make the organization’s entry into the super app ecosystem smoother, which seems promising for medium businesses and enterprises.
  • While banking and insurance-related features are indispensable in super apps, social media, ride-share, and payment companies are more likely to succeed in the Western market.
  • Unlike in the emerging economies, in the West, it seems unlikely to have one dominant super app; instead, we’re more likely to witness the rise of vertical-specific super apps, which means more opportunities for business growth.
  • Western super apps won’t aim to oust traditional mobile apps, and their competitive advantage is more likely to rely on giving users the ability to “manage fewer accounts, transact faster through consistent payments, save money using loyalty and rewards, and experience a better product enabled by cross-service insights and advice.”
  • Bearing in mind data privacy concerns, super apps targeted at the developed economies’ consumers will likely be more transparent about data use, and their functioning may require closer collaboration with regulators on the business's side.
  • The US and Europe won’t focus on the B2C market alone; we’re likely to witness there the emergence of more B2B super apps that will drive value “through data-driven insights, automated advice, and seamless integration of businesses’ platforms into a single workspace.”
Business impact of super apps

What are the business benefits of super apps?

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Super apps have dominated emerging markets, and it’s only a matter of time before their popularity grows in the West. If you’re still wondering if your organization should jump on the super app bandwagon, consider the following business benefits:

  • increased customer acquisition – compared to traditional mobile applications, super apps offer a much wider range of services that cater to the needs of diverse audiences, which translates into a bigger potential user base. As your super app grows, it’s also possible to convert the existing users into consumers of a new service at practically zero cost, much like Gojek did.
  • improved user engagement – providing consolidated services in one place and consistently expanding the offering with new features gives you more touchpoints for interaction with users and makes it easier to keep them engaged. In the words of Dara Khosrowshahi, Uber’s CEO, “when we see customers using more than one product, their engagement with the platform more than doubles.” All of that boils down to bigger profits.
  • business stability and sustainable growth – this benefit relates to the ones we’ve already discussed, but it’s worth paying special attention to it due to the current economic landscape. Super apps embrace vertical growth by encouraging a shift from a product to a platform mindset. Offering a range of services may help your business survive when a given vertical suffers from an unexpected breakdown, as was the case with travel during the pandemic. 
  • increased revenue – services within the super app ecosystem can be provided by either you as the app owner or the third-party partners. Opening up your space to various retailers lets you monetize your product easily.
  • faster bug fixing – you can release fixes and improvements Over The Air (OTA), which means no hassle with Google Play or App Store review processes. Thanks to super app configuration, mini apps can download and install updates instantly without rebuilding the whole app.
  • team independence and development efficiency – while developing super apps in separate repositories, the host of the super app provides the necessary tools and infrastructure. The teams can work independently, which results in faster development, fewer code conflicts, and increased ownership in product teams.
  • security despite users’ concerns with data privacy, a super app is a sandbox where developers can play without breaking anything. You can build an environment where you mock some sensitive parts of your codebase. As a result, the environment is more secure, and external providers can move faster and contribute features to your app.

What makes super apps popular with users?

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Super apps collectively have over 2.4 billion active users all over the world. Their enormous popularity in the B2C market can be attributed to:

  • ability to coordinate different aspects of everyday life in one place,
  • convenience and engaging experience without the need to learn how to use multiple apps,
  • time and storage saving resulting from having one user profile and downloading a single app for all services,
  • minimized risk of losing sensitive information when switching between service providers.

These benefits speak to those who haven’t yet had a chance to use a super app. According to a report by PYMNTS and PayPal, seven in ten global consumers express interest in a solution allowing them to manage payments and other everyday activities through a centralized tool. There’s much untapped potential in the developed economies, so why not be among the first to unlock it?

What are the concerns and challenges that come with super apps?

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While super apps offer numerous benefits to both businesses and consumers, they come with some serious challenges as well:

  • data privacy – the multitude of services available within super apps is actually a mixed blessing for many users, especially in the West. Having heard hundreds of stories about data privacy abuse and data breaches from big tech companies, consumers are hesitant to share all their personal data with a single service provider, even if it comes with invaluable benefits.
  • regulatory issues – as a result of data privacy infringements, regulators around the world are implementing laws to further protect personal data and restrict sharing of user data between service providers. Another challenge for businesses behind super apps may be the competition legislations adopted in developed economies.  
  • user experience – in terms of UX, the main challenge for the teams behind the mini apps that make the super app is to strike a balance between consistency and uniqueness. On the one hand, the consistent look and feel account for a positive user experience, drive adoption and retention, and foster a sense of safety. On the other, super apps by definition are made to cater to the diverse needs of heterogeneous audiences, all at once. As each demographic segment interacts with digital products differently, the question remains how to maximize usability without overcomplicating the user experience.
Super apps and your organization

What does moving into the super app ecosystem mean for your organization?

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Digital products are not developed in a vacuum. The way they’re designed and operate depends on many factors, one of which is communication between the development team. 

As stated by Melvin E. Conway: "Any organization that designs a system (defined broadly) will produce a design whose structure is a copy of the organization's communication structure." In simple words, Conway’s law means that the organizational structure is often mirrored in software design. For example, large corporations still using legacy technologies are much more likely to build stiff monoliths – and so their product reflects the organizational concerns more than the actual user needs.

A tool to tackle this issue is the reverse Conway maneuver, according to which the desired software architecture is what affects the organizational structure, not the other way round. This way, teams are capable of building digital products optimized for changing user requirements and business objectives, just as is the case with super app development.

The super app approach has a profound impact on how you organize the work of your developers. It enables respective teams to independently develop and deploy parts of the host application as mini apps and gives more room for third-party contributions. The way the super app architecture influences team composition and the development process is a great example of the reverse Conway law in practice.

What should you consider when choosing a super app development partner?

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Hiring a tech partner to build your super app can be a real money and time-saver. It takes the burden of internal recruitment from you if you lack in-house expertise in this area and opens up possibilities for upskilling. When looking for a reliable super app development company, we advise looking for the following qualities:

  • experience building super apps – it may sound obvious, but checking if the tech partner’s portfolio includes projects like yours is key. Super apps are a special kind of mobile applications, so the software development company of your choice should know its way around building mini apps and integrating them into whole ecosystems. If you’re wondering about our experience, check out how we improved the performance of MoMo’s super app and mini apps by migrating their architecture to Re.Pack
  • consultancy approach – what sets a good tech partner apart from ordinary outsourced teams is proactivity in matching tech solutions with your needs. You should be looking for a company that’s eager to take a closer look at your current product and situation first, without assessing it as good or bad, but focusing on the potential for improvement. Only once the tech partner understands your pain points and objectives better can they suggest a bespoke mix of technology and solutions. 
  • going beyond development – stepping into the super app ecosystem is not a purely technical choice; it also entails a certain degree of organizational change. That’s why the right tech partner should be able to outline the product roadmap and propose relevant changes to processes, workflows, and peopleware.
  • knowledge-sharing – if your in-house team doesn’t have much experience building super app ecosystems, it might be a good idea to look for a tech partner whose developers will share their specialist knowledge with your squad. This will make the long-term development work more efficient and lay the foundations for sustainable business growth.

At Callstack, we’ve got super app development skills and a business-oriented proactive approach. Get in touch with us, and let’s find out how we can help your business succeed with the next big super app.

Super app development in practice

What are key tech considerations for super app development?

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The unique experience that super apps offer comes with some special development considerations. Here’s a brief overview of the main factors, which you can read more about in the tech FAQ:

  • tech stack – there’s no one-size-fits-all solution to building a robust and sustainable super app, so you can go for native or cross-platform development, depending on your needs and capabilities. Our experience shows that choosing React Native and Re.Pack means optimal user experience and the ability to leverage code splitting for streamlined development and simplified management of your super app.
  • consistent performance – whether you’re in charge of all services or you’re cooperating with a third-party partner, all functionalities within your super app should have equal operating speed and effectiveness, even on low-end devices and in the low-speed internet environment.
  • user-friendly design – the abundance of features can be overwhelming unless you minimize the friction with a consistent design. To captivate the users, your super app’s design should be visually appealing yet clean and intuitive, especially if you’re planning to win the hearts of Western users, who are accustomed to straightforward navigation and minimalist design.
  • security ensuring user safety should be a priority for every tech business; however, with super apps storing all personal information in one place, their creators should put in even more effort to prevent security breaches. The precautions your development team can take include pen tests, 2FA, code obfuscation, data encryption, and more.

What approach to super app development can you adopt? 

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Digital products come in all shapes and sizes, which is why the common answer to many questions in software development is “it depends”. Super app development is no different, as depending on your preferences, you can choose from the following approaches:

  • Native Android application with Feature Delivery
  • Native iOS application with WebViews
  • Cross-platform React Native application with Metro
  • Cross-platform React Native application with Webpack and Re.Pack

At Callstack, though, we recommend going for the latter because it proves to be the most beneficial. Compared to other tools and solutions available on the market, Re.Pack allows you to enjoy:

  • reusable features
  • smaller JS bundle size
  • OTA updates of on-demand features
  • time and cost-effective development experience
  • ability to leverage third-party contributions

If you’re wondering how it works in practice, we encourage you to check out our super-app-showcase.

What exactly is Callstack’s super-app-template?

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Our super-app-showcase is a repository demonstrating how to structure a super app when working with Re.Pack and Module Federation to achieve the best business results. It highlights various solutions and best practices developers can employ to tackle challenges and streamline the super app development process. 

The super-app-showcase comprises:

  • the host app, which is the main container for the micro-frontends,
  • the shell app, which functions like a blueprint of the host app with shared dependencies,
  • a few mini apps, each dedicated to a single service booking, shopping, dashboard, and news – the latter being stored in a separate repository. 

You can learn more about the architecture and the intricacies of the template from the case study published on our blog.

How does super app development with Callstack's super-app-template influence your team’s work and developer experience?

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By definition, a super app is built as a platform “to deliver a mini apps ecosystem that users can choose from to activate for consistent and personalized app experiences.” This modular approach allows a large development team to split into smaller squads, each focused on a respective mini app, and enables third-party contributions to be seamlessly integrated into the final product. 

When implemented right, such a workflow may lead to greater flexibility, independence, and development speed. Among the steps to optimize developer experience in the super app setup, there are:

  • creating and exposing a sandbox environment that closely resembles your host app, like the shell app in our super-app-showcase,
  • if need be, creating an SDK that contains common and repeatedly used elements,
  • organizing the codebase into a monorepo, which is an optional step.

Using Re.Pack and our super-app-template to build your super app makes the application of these tips in developers’ work much easier.

The super app landscape
Business impact of super apps
Super apps and your organization
Super app development in practice

What are super apps?

arrow-down

Super apps are multipurpose platforms that integrate a wide range of services and features to answer diverse user needs, all within a single mobile interface. Comprised of modular mini apps that users can activate at their convenience, super apps are the software equivalent of Swiss army knives that deliver a powerful mobile-first experience.

Super apps act as a one-stop shop for customers, allowing them to perform everyday tasks like shopping, paying bills, communicating, and more, all in one place. They’re a powerful tool for businesses looking to captivate users with what Mike Lazaridis, Blackberry founder who coined the term in 2010, defined as a “seamless, integrated, contextualized and efficient experience.”

A good example of such an all-round experience is WeChat, a multipurpose app developed in China. Its core features include messaging, localization, a search engine, a news feed, payments, loans, public services, transportation, and housing – and that’s by no means a finished list. It shouldn’t be surprising that the number of active users on WeChat is estimated to reach 1.102 billion by 2025.

What do super apps offer?

arrow-down

Super apps are made to meet the modern-day demand for smooth, convenient, all-encompassing mobile experiences. What makes them stand out, however, is the way they’re built and how they work. 

Ordinary mobile products offer a variety of features within a single application. Super apps, on the other hand, operate as a platform to deliver modular mini apps that users can activate for personalized experiences. The things that account for the super quality in super apps include:

  • range of services – while a mobile application typically serves a single purpose, a super app aims to be the only piece of software a user needs to perform a variety of actions across services or even industries, like Grab, WeChat, or Gojek.
  • all-in-one toolkit – traditional suites of applications released by tech giants like Google or Microsoft require users to switch between products to access different services. Super apps, on the other hand, shorten the customer journey by allowing users to achieve different goals within a single ecosystem without downloading multiple digital products.
  • data sharing – as opposed to ordinary apps that collect data related to a specific purpose only, super apps gather and process much more user data. While this may raise privacy and security concerns, properly-handled data sharing between respective services is a safe way to ensure an even smoother user experience.
  • financial services – there are limitless combinations of services that super apps may offer, from messaging, social networking, and e-commerce to transportation and health. However, as the examples of Gojek’s GoPay or WeChat Pay within WeChat Wallet show, built-in payment is one of the most prevalent. Super app users are usually required to provide their payment information only once for cross-service transactions – and they don’t need to leave the app to finalize the payment.

What’s the global landscape of super apps?

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Ever since the launch of WeChat in 2011, super apps have been on the rise. There has been a notable difference between the emerging and developed economies’ approach to this kind of digital products, though. 

Super apps have taken emerging markets by storm. Among the most notable all-in-one applications released in the last decade are Southeast Asia's leading platforms Grab and MoMo, Latin America-based Rappi, Middle East’s first super app Careem, and WhatsApp, which started turning into a super app in Brazil by launched in-app business directory and shopping features. There are a few reasons why super apps’ have been booming in developing countries:

  • mobile-first nations – the emerging economies didn’t experience the desktop revolution the same way the developer markets did. Only once smartphones hit the market did they get to easily access the internet, which made many Asian nations mobile-first consumers and contributed to the wide adoption of super apps.
  • unbanked population – a large percentage of unbanked populations was the issue that the emerging economies have struggled with for a long time. To give you an idea, in 2018, over 220 million adults in China, 190 million in India, and 99 million in Pakistan didn’t have a bank account. With financial services often lying at their core, super apps allow users to access their assets and make purchases through mobile devices.
  • regulators’ support – governments in emerging economies have been supporting super apps to drive technological advancement together. For example, WeChat’s been subsidized by the Chinese government since its creation in 2011, while Jakarta entered into a partnership with Grab, Gojek, and other local startups to accelerate the launch of the capital’s smart city project. 

While super apps have been proliferating across emerging markets, they’ve been struggling to gain traction in the West. Among the reasons why are:

  • consumers’ concerns with data security and privacy
  • rigid data sharing and antitrust laws
  • cut-throat competition between existing players in most verticals.

What does the super app market look like now, and how will it evolve?

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As of early 2023, 68% of the world’s population uses a mobile phone. Over the past year, the community of mobile users grew by 168 million individuals, and over 92% of all consumers use a mobile device to access the internet. These trends make the future look bright for businesses behind all sorts of mobile applications, including super apps, and translate into some promising numbers:

  • In 2022, the global super apps market size was valued at 61.30 billion U.S. dollars and was expected to expand at a compound annual growth rate of 27.8% until 2030. 
  • Gartner predicts that by 2027, over half of the population will be using multiple super apps daily, and their adoption will take place on both personal and enterprise levels. 
  • The survey conducted by statistics bureaus of the US, UK, Germany, and Australia estimated the number of potential day-one users for super apps is estimated to reach 98 million, which would result in an estimated 3.25 trillion U.S. dollars in annual spending on a super app by early-adoption users.

Super apps are widely adopted in Asia, the Middle East, Latin America, and Africa, but developed economies aren’t exempt from this global tech trend. The key to success in the US and Europe is to understand the distinctive needs and qualities of the Western markets. Having that in mind, Deloitte proposed the following direction for super apps in developed countries:

  • Having an established brand with developed user trust will make the organization’s entry into the super app ecosystem smoother, which seems promising for medium businesses and enterprises.
  • While banking and insurance-related features are indispensable in super apps, social media, ride-share, and payment companies are more likely to succeed in the Western market.
  • Unlike in the emerging economies, in the West, it seems unlikely to have one dominant super app; instead, we’re more likely to witness the rise of vertical-specific super apps, which means more opportunities for business growth.
  • Western super apps won’t aim to oust traditional mobile apps, and their competitive advantage is more likely to rely on giving users the ability to “manage fewer accounts, transact faster through consistent payments, save money using loyalty and rewards, and experience a better product enabled by cross-service insights and advice.”
  • Bearing in mind data privacy concerns, super apps targeted at the developed economies’ consumers will likely be more transparent about data use, and their functioning may require closer collaboration with regulators on the business's side.
  • The US and Europe won’t focus on the B2C market alone; we’re likely to witness there the emergence of more B2B super apps that will drive value “through data-driven insights, automated advice, and seamless integration of businesses’ platforms into a single workspace.”

What are the business benefits of super apps?

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Super apps have dominated emerging markets, and it’s only a matter of time before their popularity grows in the West. If you’re still wondering if your organization should jump on the super app bandwagon, consider the following business benefits:

  • increased customer acquisition – compared to traditional mobile applications, super apps offer a much wider range of services that cater to the needs of diverse audiences, which translates into a bigger potential user base. As your super app grows, it’s also possible to convert the existing users into consumers of a new service at practically zero cost, much like Gojek did.
  • improved user engagement – providing consolidated services in one place and consistently expanding the offering with new features gives you more touchpoints for interaction with users and makes it easier to keep them engaged. In the words of Dara Khosrowshahi, Uber’s CEO, “when we see customers using more than one product, their engagement with the platform more than doubles.” All of that boils down to bigger profits.
  • business stability and sustainable growth – this benefit relates to the ones we’ve already discussed, but it’s worth paying special attention to it due to the current economic landscape. Super apps embrace vertical growth by encouraging a shift from a product to a platform mindset. Offering a range of services may help your business survive when a given vertical suffers from an unexpected breakdown, as was the case with travel during the pandemic. 
  • increased revenue – services within the super app ecosystem can be provided by either you as the app owner or the third-party partners. Opening up your space to various retailers lets you monetize your product easily.
  • faster bug fixing – you can release fixes and improvements Over The Air (OTA), which means no hassle with Google Play or App Store review processes. Thanks to super app configuration, mini apps can download and install updates instantly without rebuilding the whole app.
  • team independence and development efficiency – while developing super apps in separate repositories, the host of the super app provides the necessary tools and infrastructure. The teams can work independently, which results in faster development, fewer code conflicts, and increased ownership in product teams.
  • security despite users’ concerns with data privacy, a super app is a sandbox where developers can play without breaking anything. You can build an environment where you mock some sensitive parts of your codebase. As a result, the environment is more secure, and external providers can move faster and contribute features to your app.

What makes super apps popular with users?

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Super apps collectively have over 2.4 billion active users all over the world. Their enormous popularity in the B2C market can be attributed to:

  • ability to coordinate different aspects of everyday life in one place,
  • convenience and engaging experience without the need to learn how to use multiple apps,
  • time and storage saving resulting from having one user profile and downloading a single app for all services,
  • minimized risk of losing sensitive information when switching between service providers.

These benefits speak to those who haven’t yet had a chance to use a super app. According to a report by PYMNTS and PayPal, seven in ten global consumers express interest in a solution allowing them to manage payments and other everyday activities through a centralized tool. There’s much untapped potential in the developed economies, so why not be among the first to unlock it?

What are the concerns and challenges that come with super apps?

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While super apps offer numerous benefits to both businesses and consumers, they come with some serious challenges as well:

  • data privacy – the multitude of services available within super apps is actually a mixed blessing for many users, especially in the West. Having heard hundreds of stories about data privacy abuse and data breaches from big tech companies, consumers are hesitant to share all their personal data with a single service provider, even if it comes with invaluable benefits.
  • regulatory issues – as a result of data privacy infringements, regulators around the world are implementing laws to further protect personal data and restrict sharing of user data between service providers. Another challenge for businesses behind super apps may be the competition legislations adopted in developed economies.  
  • user experience – in terms of UX, the main challenge for the teams behind the mini apps that make the super app is to strike a balance between consistency and uniqueness. On the one hand, the consistent look and feel account for a positive user experience, drive adoption and retention, and foster a sense of safety. On the other, super apps by definition are made to cater to the diverse needs of heterogeneous audiences, all at once. As each demographic segment interacts with digital products differently, the question remains how to maximize usability without overcomplicating the user experience.

What does moving into the super app ecosystem mean for your organization?

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Digital products are not developed in a vacuum. The way they’re designed and operate depends on many factors, one of which is communication between the development team. 

As stated by Melvin E. Conway: "Any organization that designs a system (defined broadly) will produce a design whose structure is a copy of the organization's communication structure." In simple words, Conway’s law means that the organizational structure is often mirrored in software design. For example, large corporations still using legacy technologies are much more likely to build stiff monoliths – and so their product reflects the organizational concerns more than the actual user needs.

A tool to tackle this issue is the reverse Conway maneuver, according to which the desired software architecture is what affects the organizational structure, not the other way round. This way, teams are capable of building digital products optimized for changing user requirements and business objectives, just as is the case with super app development.

The super app approach has a profound impact on how you organize the work of your developers. It enables respective teams to independently develop and deploy parts of the host application as mini apps and gives more room for third-party contributions. The way the super app architecture influences team composition and the development process is a great example of the reverse Conway law in practice.

What should you consider when choosing a super app development partner?

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Hiring a tech partner to build your super app can be a real money and time-saver. It takes the burden of internal recruitment from you if you lack in-house expertise in this area and opens up possibilities for upskilling. When looking for a reliable super app development company, we advise looking for the following qualities:

  • experience building super apps – it may sound obvious, but checking if the tech partner’s portfolio includes projects like yours is key. Super apps are a special kind of mobile applications, so the software development company of your choice should know its way around building mini apps and integrating them into whole ecosystems. If you’re wondering about our experience, check out how we improved the performance of MoMo’s super app and mini apps by migrating their architecture to Re.Pack
  • consultancy approach – what sets a good tech partner apart from ordinary outsourced teams is proactivity in matching tech solutions with your needs. You should be looking for a company that’s eager to take a closer look at your current product and situation first, without assessing it as good or bad, but focusing on the potential for improvement. Only once the tech partner understands your pain points and objectives better can they suggest a bespoke mix of technology and solutions. 
  • going beyond development – stepping into the super app ecosystem is not a purely technical choice; it also entails a certain degree of organizational change. That’s why the right tech partner should be able to outline the product roadmap and propose relevant changes to processes, workflows, and peopleware.
  • knowledge-sharing – if your in-house team doesn’t have much experience building super app ecosystems, it might be a good idea to look for a tech partner whose developers will share their specialist knowledge with your squad. This will make the long-term development work more efficient and lay the foundations for sustainable business growth.

At Callstack, we’ve got super app development skills and a business-oriented proactive approach. Get in touch with us, and let’s find out how we can help your business succeed with the next big super app.

What are key tech considerations for super app development?

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The unique experience that super apps offer comes with some special development considerations. Here’s a brief overview of the main factors, which you can read more about in the tech FAQ:

  • tech stack – there’s no one-size-fits-all solution to building a robust and sustainable super app, so you can go for native or cross-platform development, depending on your needs and capabilities. Our experience shows that choosing React Native and Re.Pack means optimal user experience and the ability to leverage code splitting for streamlined development and simplified management of your super app.
  • consistent performance – whether you’re in charge of all services or you’re cooperating with a third-party partner, all functionalities within your super app should have equal operating speed and effectiveness, even on low-end devices and in the low-speed internet environment.
  • user-friendly design – the abundance of features can be overwhelming unless you minimize the friction with a consistent design. To captivate the users, your super app’s design should be visually appealing yet clean and intuitive, especially if you’re planning to win the hearts of Western users, who are accustomed to straightforward navigation and minimalist design.
  • security ensuring user safety should be a priority for every tech business; however, with super apps storing all personal information in one place, their creators should put in even more effort to prevent security breaches. The precautions your development team can take include pen tests, 2FA, code obfuscation, data encryption, and more.

What approach to super app development can you adopt? 

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Digital products come in all shapes and sizes, which is why the common answer to many questions in software development is “it depends”. Super app development is no different, as depending on your preferences, you can choose from the following approaches:

  • Native Android application with Feature Delivery
  • Native iOS application with WebViews
  • Cross-platform React Native application with Metro
  • Cross-platform React Native application with Webpack and Re.Pack

At Callstack, though, we recommend going for the latter because it proves to be the most beneficial. Compared to other tools and solutions available on the market, Re.Pack allows you to enjoy:

  • reusable features
  • smaller JS bundle size
  • OTA updates of on-demand features
  • time and cost-effective development experience
  • ability to leverage third-party contributions

If you’re wondering how it works in practice, we encourage you to check out our super-app-template.

What exactly is Callstack’s super-app-template?

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Our super-app-template is a repository demonstrating how to structure a super app when working with Re.Pack and Module Federation to achieve the best business results. It highlights various solutions and best practices developers can employ to tackle challenges and streamline the super app development process. 

The super-app-template comprises:

  • the host app, which is the main container for the micro-frontends
  • the shell app, which functions like a blueprint of the host app with shared dependencies
  • a few mini apps, each dedicated to a single service booking, shopping, dashboard, and news – the latter being stored in a separate repository. 

You can learn more about the architecture and the intricacies of the template from the case study published on our blog.

What does the super app How does super app development with Callstack template influence your team’s work and developer experience? look like now, and how will it evolve?

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By definition, a super app is built as a platform “to deliver a mini apps ecosystem that users can choose from to activate for consistent and personalized app experiences.” This modular approach allows a large development team to split into smaller squads, each focused on a respective mini app, and enables third-party contributions to be seamlessly integrated into the final product. 

When implemented right, such a workflow may lead to greater flexibility, independence, and development speed. Among the steps to optimize developer experience in the super app setup, there are:

  • creating and exposing a sandbox environment that closely resembles your host app, like the shell app in our super-app-template,
  • if need be, creating an SDK that contains common and repeatedly used elements,
  • organizing the codebase into a monorepo, which is an optional step.

Using Re.Pack and our super-app-template to build your super app makes the application of these tips in developers’ work much easier.

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