React Native vs Flutter: Choosing a Cross-Platform Framework

Building separate native apps for iOS and Android means two codebases, two teams and double the maintenance. Cross-platform frameworks let you build both from a single codebase. The two leaders are React Native, created by Meta, and Flutter, created by Google.

React Native in brief

React Native lets you build mobile apps with JavaScript or TypeScript and React. Your interface is made of real native components, so the app looks and behaves like a platform app. Its newer architecture improves performance and communication with native code.

Most new projects use Expo, a framework and toolset that simplifies building, testing and publishing React Native apps, including over-the-air updates.

Flutter in brief

Flutter uses the Dart language and draws every pixel of the interface with its own rendering engine. That gives you precise, consistent visuals on every device and a rich set of built-in widgets.

Side-by-side comparison

	React Native	Flutter
Language	JavaScript / TypeScript	Dart
UI approach	Native platform components	Own rendering engine and widgets
Look and feel	Matches each platform naturally	Pixel-identical across platforms
Code sharing with a React website	High (logic, types, sometimes UI)	Low
Ecosystem	Huge npm ecosystem	Growing package ecosystem
Hiring	Large pool of JavaScript/React developers	Smaller but growing Dart pool

Performance

Both deliver smooth, near-native performance for the vast majority of business apps — forms, lists, maps, payments, chat and media. Flutter's own renderer is excellent for highly custom, animation-heavy interfaces. React Native performs very well for typical apps, especially with its modern architecture and careful list rendering.

For extremely demanding apps — advanced 3D games or heavy real-time video processing — fully native development may still be the right call.

Development speed

Both offer hot reload, so developers see changes instantly. React Native has an advantage if you already have a React or Next.js website: your team can share knowledge, TypeScript types, validation and business logic between web and mobile. See our guide on MERN stack vs Next.js for the web side of that picture.

Features most apps need

Both frameworks support the essentials, either built in or through well-maintained packages:

• push notifications;
• camera, location and biometrics;
• offline storage and sync;
• in-app purchases and payments;
• deep links;
• analytics and crash reporting.

For backends, both pair well with Firebase or Supabase — compared in Supabase vs Firebase.

Testing and releasing

Plan for automated testing (unit tests plus end-to-end tools such as Maestro), beta testing through TestFlight and Google Play testing tracks, and a CI/CD pipeline that builds and submits releases automatically.

Which should you choose?

Choose React Native if:

• you already have a React or Next.js web product;
• you want to share code and developers across web and mobile;
• a native platform look and feel matters.

Choose Flutter if:

• you want a highly custom, brand-led design that looks identical everywhere;
• your app has lots of custom animation;
• your team already knows Dart.

Build your app with us

We build cross-platform iOS and Android apps with React Native and Expo — and work with Flutter when it's the better fit — including push notifications, offline mode and app store publishing. Explore our mobile app development service or tell us about your app idea.