Flutter and React Native are the two leading cross-platform mobile frameworks, backed by Google and Meta respectively. Both promise “write once, run anywhere,” but take fundamentally different architectural approaches.
Architecture
Flutter renders every pixel itself using the Impeller engine — no native UI components. Pixel-perfect consistency across platforms, but no automatic platform-native look and feel. React Native bridges to native components (<View> → UIView/android.view.View). Native look by default. The New Architecture (Fabric + TurboModules + JSI) replaces the old async bridge with synchronous communication.
Language & Developer Experience
// Flutter (Dart)
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) => MaterialApp(
home: Scaffold(
appBar: AppBar(title: const Text('Flutter')),
body: const Center(child: Text('Hello Flutter')),
),
);
}// React Native (TypeScript)
import React from 'react';
import { View, Text, StyleSheet, SafeAreaView } from 'react-native';
export default function App() {
return (
<SafeAreaView style={styles.container}>
<Text style={styles.text}>Hello React Native</Text>
</SafeAreaView>
);
}
const styles = StyleSheet.create({
container: { flex: 1, justifyContent: 'center', alignItems: 'center' },
text: { fontSize: 24, fontWeight: 'bold' },
});Flutter/Dart: Null safety, pattern matching, sealed classes. Moderate learning curve. “Everything is a widget.” React Native/TypeScript: The React model (props, hooks, context) transfers directly from web. Access to the massive npm ecosystem.
Performance & Ecosystem
Flutter outperforms in animation-heavy, GPU-intensive, and custom-rendering scenarios. React Native’s New Architecture has closed the gap for typical CRUD apps. Flutter: 40K+ pub.dev packages, targets web/desktop too. Used by Google Pay, BMW, Alibaba. React Native: npm ecosystem, Expo managed workflow. Used by Meta, Microsoft, Shopify, Discord.
When to Choose
Flutter: Custom UI-heavy apps, pixel-perfect consistency, web+desktop from same codebase, teams without JS expertise. React Native: Strong JS/React teams, sharing logic with React web app, deep native module integration, platform-convention UIs. Both are production-ready — the decision is team skills + project requirements.
Further reading: Flutter Docs | React Native Docs