React Native Development Services

Leverage the technological edge of React Native to develop native, full-featured, cross-platform mobile apps with excellent UX.

Using the full power of React, you’ll be able to build a rich mobile UI from declarative components much faster.

Leverage the technological edge of React Native to develop native, full-featured, cross-platform mobile apps with excellent UX.

Using the full power of React, you’ll be able to build a rich mobile UI from declarative components much faster.

Bartosz Klukaczewski
Head of React Native

Why choose React Native development services?

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photo-devops-1

Do you want to build your mobile application fast without having to sacrifice on the quality? If so, look no further than React Native—a technology we specialize in that is both cross-platform and native.

Platforms like Android and iOS are different in a number of aspects. However, the majority of the code used by mobile apps written in either of them can be easily shared between the two with fully native results.

Another significant factor you should consider is the popularity of cross-platform, native mobile development. Facebook, Shopify, Microsoft, Bloomberg, Wix—all these companies use React Native for their mobile apps.

We specialize
in React Native

and fully native development

Our mobile development experience goes back to 2014, when we were developing native mobile apps in Objective-C and Java. As we continued to provide a wide array of mobile app development services to multiple companies from various industries, we gradually grew our skills in React Native and switched to cross-platform mobile development.

Over the years, we’ve iterated, optimized, and improved our mobile app development process. The mobile tech stack we use matures and evolves regularly, which is the very reason we were able to move away from our initial native-only approach.

Our continuous improvement has resulted in us developing mobile apps primarily in React Native these days. We also create custom native modules in Java or Swift whenever necessary to provide the highest code quality and user experience, as well as a complete set of features to our clients at competitive prices.

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TOP
IT Outsourcing Company and Global Leader

on the independent, objective B2B research platform Clutch.co with an average rating of 4.8 from over 50 client reviews

Our services

React Native app development

icon-cross-platform

Share as much implementation as possible between Android and iOS to optimize your React Native app development—you’ll still end up with native applications.

Because you’re sharing the majority of your codebase between the two platforms, React Native will give you all the benefits of native development: a rich variety of features, excellent user experience, and best-in-class feel of the app. Plus, you will speed up your development, shorten the delivery time, and lower your development and maintenance costs.

Custom native module
development

icon-native-app

Since React Native runs in a native context, it can be enhanced with native code—either open-source or custom modules—to provide functionalities like Bluetooth communication, background geolocation, or biometrics.

We’ll look at your particular business requirements and recommend the parts of your app that should be fully native and built as custom native modules, as well as the parts you should rather develop the cross-platform way—all to give you the most attractive price-to-quality ratio.

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Automated end-to-end testing

When you develop software, creating and documenting your test cases is crucial. That being said, executing the test suites systematically is of even greater importance.

End-to-end testing means automating how the user interacts with the UI by playing various test scenarios faster and cheaper than by performing manual execution with the help of human testers. We delegate this process to machines so that we can execute test suites much more frequently leads us to detecting issues quicker and ensuring the quality of your end product is overall higher.

icon-process-automation
Process automation

Automate repeatable processes like app building and deployment to Google Play or the AppStore and save both time and money.

Automating processes is generally one of the best ways to gain an edge in any field. Many software development-related activities, like testing or deployment, can and should be automated. By doing so, you eliminate simple errors that sometimes happen when you deal with repetitive tasks and can cost you dearly down the line.

Cooperation models

Team extension

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Add skilled programmers to your in-house web development team.

Get extra coding power to increase your development capacity. Scale up and down at will.

End-to-end product development

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We can create your dream product—from start to finish

Our battle-tested experts are ready to take the challenge head-on. We have all the competencies in-house, so you don’t need to look for any additional vendors.

Which React Native technologies

do we have the most experience in?
  • icon-type-script TypeScript
  • icon_graphql GraphQL
  • icon-firebase Firebase
  • icon_jest Jest
  • icon-detox Detox

Simply put, TypeScript is JavaScript that scales. We use TS for all our mobile projects to make up for the common problems of plain JS: scalability issues, weak readability, low maintainability, and lack of static typing. Additionally, we can gradually rewrite your codebase from JavaScript to TypeScript.

Because TypeScript provides better auto-completion, we’re able to write code in it much faster, avoiding typos and various errors before we even run the code. Debugging is also made easier in TS, which is a big reason why its popularity continues to grow.

GraphQL is a query language for your API. It provides a complete and understandable description of the data in the API, gives you the ability to ask exactly for what you need and nothing more, makes it easier to grow APIs over time, and enables powerful development tools.

GraphQL queries always return predictable results. Because apps built with GraphQL control the data they receive—not the server—they are fast and stable. Since you can get many resources in a single request, these apps maintain their speed even on slow mobile network connections.

As part of the Google Cloud Platform, Firebase specifically targets mobile applications. The industry standard for push notifications through a service called Firebase Cloud Messaging (FCM), it can also be used with Crashlytics for stability reporting and Google Analytics for easy integration.

Additionally, we highly recommend picking Firebase as your serverless backend with its Firestore and Cloud Functions, seeing as we have valuable experience developing several projects using this technology.

Jest is a JavaScript testing framework that focuses on simplicity. It works in various technology stacks, not just those based on React.

Jest can reliably run parallel tests and generate code coverage reports when needed. It offers a highly useful mocking functionality necessary to perform unit tests. The framework is designed to ensure correctness of any JavaScript codebase.

Detox is an end-to-end, gray-box testing framework specifically designed for React Native. Because the core React Native development team uses it, by now it’s become the industry standard.

The framework allows for automating user interaction, defining test cases and expected actions, or even recording videos or taking screenshots of the app. By automating end-to-end testing in the app, you save a lot of money and time you’d otherwise waste on repetitive tasks such as regression testing. Plus, it dramatically improves the quality of your end product.

icon-type-script TypeScript

Simply put, TypeScript is JavaScript that scales. We use TS for all our mobile projects to make up for the common problems of plain JS: scalability issues, weak readability, low maintainability, and lack of static typing. Additionally, we can gradually rewrite your codebase from JavaScript to TypeScript.

Because TypeScript provides better auto-completion, we’re able to write code in it much faster, avoiding typos and various errors before we even run the code. Debugging is also made easier in TS, which is a big reason why its popularity continues to grow.

icon_graphql GraphQL

GraphQL is a query language for your API. It provides a complete and understandable description of the data in the API, gives you the ability to ask exactly for what you need and nothing more, makes it easier to grow APIs over time, and enables powerful development tools.

GraphQL queries always return predictable results. Because apps built with GraphQL control the data they receive—not the server—they are fast and stable. Since you can get many resources in a single request, these apps maintain their speed even on slow mobile network connections.

icon-firebase Firebase

As part of the Google Cloud Platform, Firebase specifically targets mobile applications. The industry standard for push notifications through a service called Firebase Cloud Messaging (FCM), it can also be used with Crashlytics for stability reporting and Google Analytics for easy integration.

Additionally, we highly recommend picking Firebase as your serverless backend with its Firestore and Cloud Functions, seeing as we have valuable experience developing several projects using this technology.

icon_jest Jest

Jest is a JavaScript testing framework that focuses on simplicity. It works in various technology stacks, not just those based on React.

Jest can reliably run parallel tests and generate code coverage reports when needed. It offers a highly useful mocking functionality necessary to perform unit tests. The framework is designed to ensure correctness of any JavaScript codebase.

icon-detox Detox

Detox is an end-to-end, gray-box testing framework specifically designed for React Native. Because the core React Native development team uses it, by now it’s become the industry standard.

The framework allows for automating user interaction, defining test cases and expected actions, or even recording videos or taking screenshots of the app. By automating end-to-end testing in the app, you save a lot of money and time you’d otherwise waste on repetitive tasks such as regression testing. Plus, it dramatically improves the quality of your end product.

Why work
with STX Next?

We know that each React Native app is as unique as the business it’s designed to serve.

Over the years, clients have come to us looking for support at very different stages of development. We were never caught off guard or let them down.

Here’s what you can expect from us if you find yourself in any of the following situations:

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1
What if I need to save my budget and cut development costs?

You can scale the team down or move development entirely back in-house at any time. We’re ready to support your React Native project however you see fit.

2
What if I want to keep some of the work in-house?

Smart move. By all means, keep your existing team if it works for you. Your external team will simply complement what you’re already doing while bringing in a fresh perspective and greater scalability.

3
I want to build a mobile app, but I can’t decide if I want to choose React Native or go fully native. What can you recommend?

Whenever we start working on a new mobile app, we first ask ourselves what tech stack will be the best fit to develop all the required features and provide the best quality at the most competitive price and timeframe.

With React Native, it’s important to keep in mind that it works within a native context. That's why React Native will always give you some native code. The only question is: how native will it be?

To determine that, we’ll first decide which particular features of your mobile app can be done using React Native with open-source modules, and which should be fully native and developed from scratch.

We’re fully prepared to help you with development in both approaches. Based on our experience delivering over a dozen React Native projects, we’ll advise you individually which approach is optimal in your specific situation.

4
I’ve already started developing my React Native app, but I’m not too happy with it. Can you take over the project?

Yes, of course. We can support you at any stage of development, even when we’re not building your product from scratch.

In such cases, we usually start with an audit to identify both the positive and negative aspects of your current codebase.

We’ll also root out any potential security, UX, or code quality issues and present you with a specific plan on how to fix them.

Examples of React Native development

projects we’ve delivered

project-tiles-3-1
Industry: Lifestyle

NOTA NOTA

Express yourself by creating perfumes for every occasion in the comfort of your home, using a mobile app.

NOTA NOTA consists of a tailor-made perfume-making machine that can mix various basic scents, creating unique fragrances. The user controls the machine via a mobile app using Bluetooth LE connectivity.

The app allows users to design and produce custom, unique perfumes and share their recipes with the community using the social platform within the app that connects creators and designers from all over the world. Users can try out the perfume recipes, as well as rate them or comment on them.

project-tiles-1-1
Industry: Education

Zappi

Zappi is a UK-based startup focusing on education.

Zappi’s goal is to revolutionize the way temp teachers cooperate with local schools. The app allows temp teachers to find work at UK schools in a simple, effortless way.

By setting their availability, teachers benefit from receiving live job notifications through a transparent, two-way feedback system that ensures they’re ready for each work assignment, while cutting out the need for agency calls and tons of paperwork.

Within this comprehensive project, STX Next created a mobile app for teachers, a web app for school managers, and a backend solution in Python with GraphQL. We also designed the majority of the UI/UX.

wise-alpha
Industry: Fintech

WiseAlpha

The world’s first corporate bond market app.

WiseAlpha’s world-first fractional bond trading platform is pioneering mass retail market participation in corporate bonds—a trillion-dollar asset class that only hedge funds, institutions, and ultra-high net worth individuals could previously access directly.

The WiseAlpha mobile app allows users to conveniently manage their investment portfolios by buying and selling fractional bonds. You can browse, filter, and search the bond marketplace, as well as access detailed information about individual bonds, including business description, capital structure, or key financials and reports.

The company's innovative investment product is praised by its users and recognized by industry awards like the British Bank Awards and the Good Money Guide Awards.

All of our case studies

During our 15+ years on the market, we have delivered 350+ projects for 130+ clients in several dozen industries, ranging from fintech and big data to education and advertising.

React Native services we’ve provided

to our clients
end-to-end-mobile-app-development End-to-end app development
react-custom React Native custom native module development
automation Automation
mvp MVP development
technology-consulting Consulting
icon_tablet_app_development Tablet app development
cross-platform JavaScript to TypeScript migration
white-bog-testing Automated end-to-end testing
technical-audit Technical audit
photo-python-1

React Native services we’ve provided

to our clients
end-to-end-mobile-app-development End-to-end app development
react-custom React Native custom native module development
automation Automation
mvp MVP development
technology-consulting Consulting
icon_tablet_app_development Tablet app development
cross-platform JavaScript to TypeScript migration
white-bog-testing Automated end-to-end testing
technical-audit Technical audit
Why is STX Next

the right
development
partner for you?

photos-4
Over 4 years of React Native experience

Since 2016, we’ve been perfecting our React Native app development process and growing our React Native expertise to be a worthy development partner for you.

Full range of complementary services

In addition to React Native services, we have everything you need for a long-term, end-to-end tech partnership.

We’re hungry for a challenge

Our reputation attracts the best React Native app developers you can hire. These top-notch specialists are always out for a challenge, ready to give 100% of their software development skills into any project that needs it.

Cross-functional React Native teams

Our teams will work exclusively for you, pooling their talents to build you the best React Native app possible. In the majority of cases, one team sits in one room working on one project, ensuring full focus.

True project ownership

We will build your React Native app as if it was our own; our reputation depends on it. We are interested in why you want to build your product, not just what it is or how to build it.

What do we promise

if you partner with us?
A true partnership only works if both sides bring everything they’ve got to the table. Here’s what you can expect when you join forces with STX Next:
Outstanding, non-corporate atmosphere, team spirit, and great people to work with
Expert knowledge and understanding of React Native app development process
Tried-and-tested use of the best React Native app development practices
Extensive specialization in working with native functionalities, like Bluetooth or Biometrics
Demonstrated experience in implementing delightful user experiences and optimizing the development process by introducing automation
Effortless English communication skills
Truly Agile working environment composed of small, independent teams working in Scrum with a flat organizational structure
Expertise in using code-versioning tools, such as Git
Strong skills in unit testing and debugging
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Who trusted us?

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logo-seerene-hover logo-seerene-hover-1
dcernis-logo-bw decernis-logo-color
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logo-blocktrade logo-blocktrade-hover-2
logo-zappi-hover logo-zappi-hover-1
logo-notanota nota_nota_logo
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What our clients say

C-level executives, product managers, tech leads, and founders from around the world have appreciated our help in delivering world-class products under strict deadlines.

The feedback we get from our clients is consistent. We take real ownership. We happily serve as mentors in tech and Agile. We listen to real business needs instead of just shipping features.

Featured in yahoo-finance-logo

STX Next’s development efforts have been so successful that the contract is likely to be extended, and the DevOps resources are incredibly proactive and communicative. The firm features an effective onboarding process and an agreeable project management approach, creating a seamless engagement.

Kim Steglich
Director of Operations @ BuildFax
Featured in the-telegraph-logo

We were looking to move our Python & Django development out of London, to save money but also to find a good quality Agile team approach that included some product ownership. STX Next was able to provide the high quality dev team alongside project management. This fact combined with the costs savings from moving away from London made it a simple decision.

Neal Hendey
Managing Director @ TBSeen

We were able to scale up instantly, adding developers with the specific technical expertise that we needed and then rotating them out when the problem had been solved. At a much smaller firm that would have been very difficult. So far there hasn’t been any challenge that STX Next hasn’t been able to overcome.

Matthew Brooke-Hitching
CEO @ meet.mba
Featured in gamespot-logo

It was a pleasure working with the team at STX Next. Collaboration and communication worked like a charm and made our first foray into hiring outside help a big success. The developed tool included technology we were able to extract as a library and made the effort even more worthwhile. Looking forward to our next endeavor.

Sebastian Kral
Global Head of Pipeline @ Pixomondo

We came to STX Next looking for a partner to join our developers in putting together a site for Buddhist texts. It's a complex project, involving tens of thousands of texts and relations, and dealing with nearly forty languages. We've been more than happy with the process. The STX Next team has shown initiative and interest, and has been quick to adapt to working with our developers.

Bhante Sujato
Director @ SuttaCentral
Featured in forbes

We met STX in the beginning of the latest cryptocurrency boom and their contribution was vital to us when managing that extraordinary demand. They quickly adapt to the company and domain, show true ownership by always acting proactively towards solution and deliver high quality work even under stressful conditions. STX is now one of the most essential partners of our business.

Çağatay Yüksel
Founder and CEO @ Koinim
Featured in logo-techcrunch-1

The STX Next team has proven itself to be a solid and reliable partner in software development for the Tiqets platform. Although Tiqets’ main development team is located in the Amsterdam office, having dedicated development teams in Poland gives the company the flexibility it requires in the rapidly growing market that Tiqets operates in.

Sietse van der Laan
Tech Team Manager @ Tiqets

Bartosz has been an amazing project leader—to have what feels like a small-budget project get almost daily help at times from the Head of React Native was very surprising, and I couldn't be more grateful for his involvement.

CEO
Kandisnap

React Native FAQ

What is React Native?

React Native is a development framework that allows development teams to create, among others, native iOS/Android mobile apps using React—a best-in-class JavaScript library for building user interfaces.

From the end user’s perspective, the app is rendered with fully native components that offer the best user experience and performance.

From the development perspective, React Native allows you to easily combine JavaScript code with fully native code in Java/Kotlin for Android and Objective-C/Swift for iOS to increase team velocity. It even allows codebase sharing with web apps.

React Native also supports Universal Windows Platform (UWP), macOS, and web environment, making it one of most portable technologies that still honors platform differences and makes the experience of the app unique.

How does React Native work?

Just like React Virtual DOM, React Native creates an internal representation of the rendered UI. This tree-shaped structure helps calculate differences between each layout change, optimizing the rendering process.

Developers use React’s declarative API in their JavaScript source code, which is later translated to fully native components for all platforms, like iOS and Android. This means that a React Native developer doesn’t need to know the exact type of components the JavaScript code is being translated into.

Working on such a high level of abstraction can lead to increased productivity and unified development for all platforms due to shared codebase, which is also incredibly beneficial when it comes to maintenance costs.

What are some examples of popular mobile apps built with React Native?

React Native isn’t only popular within the startup environment. Big (really big!) players also use and actively support it. Some of the apps and companies that utilize React Native are: Facebook, Shopify, Instagram, Skype, Pinterest, Uber Eats, Discord, and Salesforce.

How does React Native compare to fully native mobile app development?

React Native always operates in a native context; it’s not a web browser environment. Thanks to that, it’s easy to combine it with fully native code based on your needs.

Nothing prevents you from having just some part of your app’s UI written in React Native—which translates to fully native components in the end—and keeping the rest of the app fully native. We can write almost 100% of your codebase in JavaScript, if your app doesn’t require many native features.

You can also use all native APIs your operating system exposes, including Bluetooth connectivity, background geolocation, or biometrics, like in any other native app. However, keep in mind that React Native is not suited for game development.

How does React Native compare to hybrid and mobile web app development?

Although both React Native and hybrid mobile development frameworks like Ionic use similar technologies, the end product can be very different.

You’d be wise to keep in mind that apps developed with React Native are fully native mobile apps, just like their Swift or Java counterparts. It’s not an app wrapped in a web view.

Because of that, the end user will easily distinguish between those two types of apps just by interacting with them. A hybrid app won’t be as intuitive, it’ll be less responsive, and have limited access to the phone’s features.

You can achieve the best user experience only by using native mobile apps. React Native apps belong to that category.

How does React Native compare to Flutter?

Both React Native and Flutter are cross-platform technologies that give you native results, but their approach is different.

React Native uses platform-native components—the same ones used in fully native development—while Flutter has its own rendering mechanism, which can imitate platform-specific components.

React Native respects platform differences, while Flutter tries to unify them and handles rendering on its own. Flutter also uses the Dart language, which is less popular than JavaScript/TypeScript used by React Native.

This may be a game-changer when deciding which technology to choose for someone who has worked with React in JavaScript.

What are the benefits of using React Native?

React Native offers many useful tweaks to the mobile development workflow, including hot reload, which allows developers to make changes to the app’s source code without having to recompile it.

React Native is blazingly fast and significantly speeds up the software development process. Additionally, apps written using React Native share the codebase for Android and iOS, making them much easier to develop and maintain.

Can the user distinguish if the app is developed with React Native?

React Native behaves exactly the same as any other fully native app. The user won’t be able to tell judging only by the user experience that your app was created with React Native instead of plain Java or Swift. It is, however, a much different—and better—experience compared to apps based on HTML in a web browser.

React Native FAQ

React Native FAQ

tabFaqimage
smallTabimage
photos-12
What is React Native?

React Native is a development framework that allows development teams to create, among others, native iOS/Android mobile apps using React—a best-in-class JavaScript library for building user interfaces.

From the end user’s perspective, the app is rendered with fully native components that offer the best user experience and performance.

From the development perspective, React Native allows you to easily combine JavaScript code with fully native code in Java/Kotlin for Android and Objective-C/Swift for iOS to increase team velocity. It even allows codebase sharing with web apps.

React Native also supports Universal Windows Platform (UWP), macOS, and web environment, making it one of most portable technologies that still honors platform differences and makes the experience of the app unique.

How does React Native work?

Just like React Virtual DOM, React Native creates an internal representation of the rendered UI. This tree-shaped structure helps calculate differences between each layout change, optimizing the rendering process.

Developers use React’s declarative API in their JavaScript source code, which is later translated to fully native components for all platforms, like iOS and Android. This means that a React Native developer doesn’t need to know the exact type of components the JavaScript code is being translated into.

Working on such a high level of abstraction can lead to increased productivity and unified development for all platforms due to shared codebase, which is also incredibly beneficial when it comes to maintenance costs.

What are some examples of popular mobile apps built with React Native?

React Native isn’t only popular within the startup environment. Big (really big!) players also use and actively support it. Some of the apps and companies that utilize React Native are: Facebook, Shopify, Instagram, Skype, Pinterest, Uber Eats, Discord, and Salesforce.

How does React Native compare to fully native mobile app development?

React Native always operates in a native context; it’s not a web browser environment. Thanks to that, it’s easy to combine it with fully native code based on your needs.

Nothing prevents you from having just some part of your app’s UI written in React Native—which translates to fully native components in the end—and keeping the rest of the app fully native. We can write almost 100% of your codebase in JavaScript, if your app doesn’t require many native features.

You can also use all native APIs your operating system exposes, including Bluetooth connectivity, background geolocation, or biometrics, like in any other native app. However, keep in mind that React Native is not suited for game development.

How does React Native compare to hybrid and mobile web app development?

Although both React Native and hybrid mobile development frameworks like Ionic use similar technologies, the end product can be very different.

You’d be wise to keep in mind that apps developed with React Native are fully native mobile apps, just like their Swift or Java counterparts. It’s not an app wrapped in a web view.

Because of that, the end user will easily distinguish between those two types of apps just by interacting with them. A hybrid app won’t be as intuitive, it’ll be less responsive, and have limited access to the phone’s features.

You can achieve the best user experience only by using native mobile apps. React Native apps belong to that category.

How does React Native compare to Flutter?

Both React Native and Flutter are cross-platform technologies that give you native results, but their approach is different.

React Native uses platform-native components—the same ones used in fully native development—while Flutter has its own rendering mechanism, which can imitate platform-specific components.

React Native respects platform differences, while Flutter tries to unify them and handles rendering on its own. Flutter also uses the Dart language, which is less popular than JavaScript/TypeScript used by React Native.

This may be a game-changer when deciding which technology to choose for someone who has worked with React in JavaScript.

What are the benefits of using React Native?

React Native offers many useful tweaks to the mobile development workflow, including hot reload, which allows developers to make changes to the app’s source code without having to recompile it.

React Native is blazingly fast and significantly speeds up the software development process. Additionally, apps written using React Native share the codebase for Android and iOS, making them much easier to develop and maintain.

Can the user distinguish if the app is developed with React Native?

React Native behaves exactly the same as any other fully native app. The user won’t be able to tell judging only by the user experience that your app was created with React Native instead of plain Java or Swift. It is, however, a much different—and better—experience compared to apps based on HTML in a web browser.

What other services
do we offer?

Mobile

DEVELOPMENT SERVICES

Product Design

SERVICES

JavaScript

DEVELOPMENT SERVICES
Tell us about your project

Speed up work on your software projects and outpace the competition.

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Matthew Harris
Director of Business Dev
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Marta Błażejewska
New Business Manager