Hire React Native Developers

React Native's New Architecture is now the default for new projects. Fabric, the new renderer, works with concurrent React features and synchronous layout; TurboModules load native modules lazily and are called through JSI rather than the old asynchronous bridge; and Codegen produces type-safe glue between TypeScript and native code. For an existing app, migration is mostly about dependencies: we audit every library for New Architecture support, replace or patch the ones that lack it, and switch over behind a release we can test thoroughly.

Expo has become the standard way to start a React Native app. Development builds, config plugins and continuous native generation give you custom native code without hand-maintaining Xcode and Gradle projects, and EAS handles cloud builds and signing. When a feature needs a platform API or vendor SDK that no existing library covers, we write a native module in Swift or Kotlin - typically with the Expo Modules API - and expose a small, typed interface to the JavaScript side.

Shipping a mobile app is more than merging to main. We set up separate development, preview and production builds, manage signing certificates and provisioning profiles, and use TestFlight and Google Play internal testing tracks so stakeholders can try every build on real devices. Store listings, privacy declarations and data-safety forms are prepared alongside the code, because a missing declaration is one of the most common reasons a release is held up in review.

Over-the-air updates let JavaScript fixes reach users without waiting for store review, but they need discipline. Runtime versions tie each update to the native binary it is compatible with, updates go out to a staged audience first, and a rollback path is ready before anything is published. Native changes always go through a proper store release, with phased rollout so a problem shows up in crash reporting before it reaches every user.

Most React Native performance problems come from a short list: long lists rendered with the wrong component, unnecessary re-renders from state that lives too high in the tree, heavy work on the JavaScript thread during animations, and oversized images. We profile with React DevTools, the Hermes profiler and the platform tools before changing anything, then fix the measured cause - FlashList or tuned FlatList settings for long lists, memoisation where it pays off, Reanimated for animations that run on the UI thread, and properly sized, cached images.

Startup time and app size get the same treatment: lazy loading of rarely used screens, trimming unused dependencies and checking bundle size as part of the build, so regressions are caught in review rather than in store reviews from users.

AI tools speed up the parts of a React Native project that follow clear patterns: scaffolding screens and navigation stacks from a design, generating TypeScript types from an API schema, drafting Jest unit tests and Detox end-to-end flows, writing the boilerplate for a new native module on both the Swift and Kotlin sides, and flagging deprecated APIs during an upgrade.

Your developer handles what needs mobile judgement - platform conventions on iOS and Android, gesture and animation feel, offline and sync behaviour, permissions and privacy, and whether a feature belongs in JavaScript or native code. Every AI-drafted change is reviewed and run on real devices before it is merged, so faster delivery never means an app that feels generic.