We build iOS and Android apps with React Native — real native screens, shared TypeScript code and one team, so you launch on both stores faster and keep them in sync.
TECHTARN is a React Native app development company for startups and businesses in the USA, UK, UAE, India, Canada, Australia and Singapore. Our React Native developers build cross-platform apps in TypeScript that render true native components on iPhone and Android.
When a feature needs platform code, we write it in Swift or Kotlin — the same skills behind our iOS and Android work. We also build the Node.js backend, and can reuse logic from your React or Next.js web app. Comparing options? See Flutter and our mobile app services.
React Native's Fast Refresh updates the app as you save. Pick a theme to see the code and both phones change together.
export const theme = { name: "Ocean", primary: "#1747ff", radius: 14, };
Your app is written in TypeScript and React. React Native turns those components into real iOS and Android views, and the New Architecture lets JavaScript talk to native code directly and quickly.
That is why React Native apps feel native — they are using the same building blocks as apps written in Swift or Kotlin. Hover or tap a layer to highlight it.
TypeScript and React components — screens, logic and state you write once.
Turns your components into real native views, with Fabric rendering and TurboModules.
Direct, fast calls between JavaScript and native code — no slow message queue.
iOS (UIKit) and Android (Views), plus any native SDK you need.
React Native has a large ecosystem of well-maintained libraries for navigation, state, animation, payments, analytics and testing. We pick stable, widely used ones and keep them up to date.
With Expo and EAS we automate builds and over-the-air updates. Payments, push and analytics connect through our API integration team.
It is a great fit for most business apps — but not every app. Here is how we decide.
Building a game? See Unity. Need one platform's newest features first? See native iOS or native Android.
Starting fresh is easy. Moving an existing product takes planning — here is how we do it.
Reuse your team's React skills, business logic and API layer to launch mobile apps faster.
Add React Native screens into an existing native app step by step, without a big rewrite.
Move from Ionic, Cordova or Xamarin to React Native for a more native feel and better performance.
Swipe or scroll through the six steps.
Goals, users, features and a plan, including which parts need native code.
One design system that respects iOS and Android conventions.
Two-week sprints, with test builds for both platforms at the end of each.
Custom native modules for device features and SDKs.
Automated tests plus real-device testing on iPhone and Android.
App Store and Google Play submission, then over-the-air updates for fixes.
Everything from a new app to a rescue project.
New iOS and Android apps from one TypeScript codebase.
Faster builds, EAS Build and over-the-air updates with Expo.
Swift, Kotlin and Java code for device features and third-party SDKs.
Upgrades to the New Architecture and moves from other frameworks.
Smooth gestures and animations with Reanimated.
Version upgrades, store policy changes and new features.
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Tell us about your app idea, users and timeline. We'll send a free scope, tech recommendation and estimate — we reply within 4 business hours.