Cross-Platform App Development
Full mobile apps built once in React Native and shipped to both iOS and Android, architected to share the maximum amount of code while accommodating genuine platform-specific UI differences where they matter.
React Native Development
React Native Development for Teams Who Live in React
We build cross-platform mobile apps in React Native — a single codebase shipping to iOS and Android simultaneously, with the added advantage of sharing logic and even components with a React-based web product when your team already works in JavaScript or TypeScript. It's usually the fastest path from idea to a genuinely native-feeling app on both platforms.
Why React Native Fits Teams Already Working in React
React Native's biggest practical advantage isn't just cross-platform code sharing — it's that teams already building in React or TypeScript can apply existing skills and patterns directly to mobile development, rather than hiring entirely separate iOS and Android teams with different languages and mental models. For a company with a React-based web product, that overlap in skills and sometimes even shared business logic is a genuine efficiency gain, not just a marketing claim.
The framework has matured significantly — the New Architecture (Fabric and TurboModules) has closed much of the performance gap with native development for most app categories, and the ecosystem of native module integrations means React Native can access platform-specific APIs when genuinely needed, rather than being limited to lowest-common-denominator functionality.
Expo has become the default starting point for most React Native projects, handling much of the build tooling, OTA updates, and native module management that used to require deep native development knowledge to configure correctly. We use Expo where it fits and eject to bare React Native when a project's specific native requirements exceed what Expo's managed workflow supports.
React Native isn't the right call for every app — performance-critical games, apps with extremely heavy native API dependencies, or apps requiring pixel-perfect platform-specific UI on both iOS and Android sometimes fit native development better. We'll tell you honestly when that's the case rather than defaulting to React Native because it's faster for us to build.
Upgrading React Native versions over time is its own discipline worth planning for upfront, since the framework and its ecosystem of native modules move faster than most teams expect, and falling multiple versions behind makes any eventual upgrade significantly more painful. We build with a realistic upgrade cadence in mind rather than treating version updates as something to defer indefinitely until they become unavoidable and far more disruptive than staying current would have been.
We also keep a close eye on which third-party native modules a project depends on, since an unmaintained module can quietly become a liability years into a product's life. Favoring well-supported, actively maintained packages over the newest or most feature-rich option is a deliberate tradeoff we make on every project.
What React Native Development with Vertexa Includes
Expo & Bare Workflow Development
Development using Expo's managed workflow when it fits the project's needs, or bare React Native when specific native module requirements exceed what Expo's managed environment supports.
Native Module Integration
Custom native module development in Swift/Kotlin when a project needs platform-specific functionality React Native's JavaScript layer can't access directly, bridged cleanly into the codebase.
Code Sharing with Web Products
Architecture that shares business logic, API clients, and sometimes UI components between a React Native mobile app and a React-based web product, when your company maintains both.
Performance Optimization
Profiling and optimization addressing React Native's specific performance characteristics — bridge communication overhead, list rendering at scale, and animation performance — using the New Architecture where it helps.
App Store & Play Store Submission
Submission handling for both platforms, including the platform-specific requirements that differ even when the underlying codebase is shared.
Migration from Native or Other Frameworks
Migrating an existing native iOS/Android app pair, or an app built in another cross-platform framework, to a unified React Native codebase.
How We Build with React Native
Discovery & Architecture Planning
We define app requirements and assess whether React Native genuinely fits — including whether Expo's managed workflow covers your needs or bare React Native is necessary.
Component & Code-Sharing Design
We design the component architecture to maximize code sharing across platforms while planning explicitly for the platform-specific UI differences that genuinely matter for native feel.
Development & Cross-Platform Testing
Development includes continuous testing on both iOS and Android throughout, catching platform-specific rendering and behavior differences as they're introduced, not at the end.
Submission & Launch
We handle submission to both the App Store and Play Store, accounting for each platform's specific requirements, then monitor performance and crash data across both platforms post-launch.
Why Brands Choose Us for React Native Development
We Know When React Native Isn't the Answer
Some agencies build everything in React Native regardless of fit. We'll tell you honestly when a project's requirements genuinely call for native development instead, rather than stretch React Native into a use case it doesn't serve well just to keep the project on a stack we know.
Real Native Module Experience
When a project needs platform-specific functionality beyond React Native's JavaScript layer, we write the native bridge code directly rather than searching for a community package that may be unmaintained.
Code Sharing That Actually Gets Used
For companies with both a React web product and a React Native app, we architect genuine code sharing — not just the same language, but actually shared business logic and API layers.
New Architecture Expertise
We build with React Native's New Architecture (Fabric and TurboModules) where it benefits the project, understanding the real performance tradeoffs rather than treating it as an automatic checkbox to tick on every build.
React Native Technologies We Use
We build with React Native and TypeScript as our default stack, using Expo's managed workflow for most projects and ejecting to bare React Native when specific native module requirements demand it. For navigation, we use React Navigation, and for state management, we choose based on project complexity — from React Context for simpler apps to dedicated state libraries for complex ones. We integrate native modules in Swift and Kotlin when platform-specific functionality requires it, and use Fastlane for build automation and store submission.
- React Native
- TypeScript
- Expo
- React Navigation
- Fastlane
- Swift & Kotlin (native modules)
Who React Native Fits Best
Teams Already Building in React
Companies with an existing React or TypeScript team who want to apply existing skills to mobile development rather than build out separate native iOS and Android teams.
Startups Needing Fast, Cross-Platform MVPs
Early-stage companies needing to validate a product on both iOS and Android quickly, without the cost of building and maintaining two separate native codebases before product-market fit.
Products with a Companion Web App
Companies maintaining both a React web product and a mobile app, who benefit from sharing business logic and reducing the maintenance burden of fully separate codebases.
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Learn moreMobile App Development
See the full overview of our Mobile App Development service.
View serviceFrequently asked questions about React Native Development
For most standard product apps, React Native with the New Architecture performs very close to native. For apps with extremely heavy native API dependencies or intensive graphics, native development can still be the better fit for your specific use case.
Expo's managed workflow covers most app requirements efficiently and is our default starting point. We move to bare React Native when a project needs specific native modules Expo's managed environment doesn't currently support well.
Yes, through React Native's native module system and a large ecosystem of community and custom modules. For anything not already supported, we write custom native bridge code in Swift and Kotlin.
A focused MVP typically takes 8-12 weeks for both platforms simultaneously — often faster than building two separate native apps, since most of the codebase is shared between iOS and Android.
Yes, this is one of React Native's genuine advantages for teams with an existing React web product. We architect shared business logic, API clients, and sometimes UI components between the two.
We write a custom native module bridging the specific native API into your React Native app. This is less common than it used to be given the maturity of the ecosystem.
Have a product idea that needs to ship on both platforms fast?
Tell us about your team and timeline — React Native is often the fastest path to a genuinely native-feeling app on iOS and Android simultaneously.