React Native Development Company

What does a custom React Native development service include?

A custom React Native build is more than screens written in TypeScript. Someone has to choose between Expo and a bare project, pick the navigation library, decide how state and API data are handled, work out which features need native Swift or Kotlin modules, and set up how builds are signed and shipped. Those choices decide how painful every later React Native upgrade will be.

At Miracuves a custom engagement covers the TypeScript codebase on the New Architecture, native modules for things like background GPS, payments and biometrics, an EAS or Fastlane release pipeline, App Store and Google Play submission, and the backend work the app depends on. It is scoped in writing, runs 2-8 weeks, and you receive 100% of the source code.

React Native or Flutter: which should you choose?

Both put one codebase on iOS and Android, so the deciding factor is usually your team. React Native is written in TypeScript and React, renders real platform views through Fabric, and lets your React web engineers read and change the mobile code. Flutter uses Dart and draws every pixel with its own engine, which keeps the UI identical on both platforms but needs a separate skill set.

• Choose React Native if you already run React or Next.js on the web, want to share types and API clients, or need over-the-air JavaScript updates.
• Choose Flutter if there is no web codebase to share and the design is heavily custom. Our 90+ ready-made platforms are built in Flutter, which is why they ship in 6 working days; porting one to React Native is quoted as a custom build.
• Choose Swift and Kotlin if the app is mostly device work, such as AR, audio processing or deep platform integrations.

Should your React Native app use Expo?

For most new apps, yes. The React Native documentation now recommends starting with a framework, and Expo is the one it names. Expo brings Expo Router for file-based navigation, a large set of maintained native modules for the camera, notifications and secure storage, and development builds that can include any custom native code - so the old rule that Expo apps cannot use native modules no longer holds.

Miracuves still chooses a bare React Native project when an app depends on native SDKs that need hand-edited Xcode or Gradle setup, or when an existing app carries years of native changes. Either way, the ios/ and android/ projects, or the config plugins that generate them, are part of your handoff, and EAS Build is a convenience rather than a lock-in.

What is the New Architecture, and does it matter for your app?

The New Architecture replaces the asynchronous bridge React Native once used to pass JSON messages between JavaScript and native code. JSI lets JavaScript call native code directly, TurboModules load native modules only when they are first used, and the Fabric renderer supports synchronous layout and React's concurrent features. It has been the default for new projects since React Native 0.76.

For your product it matters in two places: smoother lists, gestures and animations, and whether your dependencies are ready. Libraries that never moved to the New Architecture block upgrades. When Miracuves takes over an older React Native app, the first step is a dependency audit listing which packages to upgrade, replace or rewrite as TurboModules; the upgrade is then quoted in stages.

How do over-the-air updates work, and what can they not change?

A React Native app ships its JavaScript as a bundle, so a fix to that JavaScript or to bundled images can be downloaded by installed apps without a store release. Today this runs through EAS Update or a self-hosted CodePush server; Microsoft retired App Center, the hosted CodePush service, in March 2025.

• An OTA update can change TypeScript logic, copy, styles and bundled images.
• It cannot add a native module, change permissions or move to a new React Native version - those need a new store build.
• Updates are tied to a runtime version, so a bundle never reaches a binary it does not match.
• Store rules allow fixes and small changes this way, not a change to what the app does.
• Miracuves sets up separate staging and production channels, so a fix runs on internal builds before users receive it.

Can a React Native app share code with your React web app?

Yes, but not the screens by default. React Native renders native views, not HTML, so a component built from div elements and CSS will not run on a phone. What moves across cleanly is everything under the UI: TypeScript types, the API client, validation schemas, authentication logic, hooks that do not touch the DOM, and state stores such as Zustand.

Miracuves usually puts that shared layer in a package inside a monorepo next to your Next.js or React app, so a change to an API type breaks the build on both sides instead of breaking in production. React Native Web can render React Native components in a browser, and we use it when a screen must be identical on both, but most products keep separate web and mobile UI on top of the shared core.

Should you hire React Native developers or a development company?

Hiring React Native developers directly works when you already have a mobile lead who owns upgrades, native modules, signing certificates and store submissions. React web developers pick up React Native components quickly; the Xcode, Gradle and release side is where projects without that lead tend to stall.

Miracuves works as a company, not a staffing agency: a React Native engineer, backend engineer, QA and a project manager work to a written scope with weekly sprint demos. For continuing work, or cross-platform consulting on an app you already run, the Ongoing React Native Development retainer starts from $2,299/month with a dedicated team. We do not rent individual developers by the hour.