Flutter vs React Native: Which Should You Use for a Mobile App?
Both build iOS and Android apps from one codebase. Flutter uses Dart and draws its own UI; React Native uses JavaScript/TypeScript and native components, usually with Expo. How they compare on language, performance, look and feel, web reuse, AI-tool support and hiring.
If you want an app on both iPhone and Android without writing two separate apps, the two leading options are Flutter (from Google) and React Native (from Meta). Both are mature, both are used by large companies, and both are good choices. The difference is mostly about language and how the UI is drawn.
The short version
- Flutter — write in Dart; Flutter draws every pixel itself with its own rendering engine. Very consistent look across platforms.
- React Native — write in JavaScript/TypeScript with React; it renders real native components. Usually used with Expo, which handles builds, updates and much of the setup.
Side by side
| Flutter | React Native (with Expo) | |
|---|---|---|
| Language | Dart | JavaScript / TypeScript |
| UI | Own widgets, drawn by Flutter | Native platform components |
| Look across platforms | Identical by default | Feels native to each platform |
| Share code with a web app | Flutter web (works, less common) | Share logic and React knowledge with a React web app |
| Build in the cloud | Various CI services | Expo EAS Build (no Mac needed for iOS) |
| Over-the-air updates | Third-party options | Expo Updates |
| Ecosystem | Pub packages | npm — enormous |
| AI coding tools | Good | Excellent (vast JS/TS training data) |
Flutter's strengths
- Pixel-perfect consistency — the app looks the same everywhere, which designers love.
- Smooth performance and animations — rendering is fully under Flutter's control.
- One toolkit for mobile, web, desktop from the same codebase.
- Dart is easy to pick up and has strong typing.
Trade-offs: another language to learn if you know JavaScript; apps can feel slightly less "native" unless you use platform-adaptive widgets; a smaller ecosystem than npm.
React Native's strengths
- JavaScript/TypeScript and React — if you or your AI tools already build React web apps, the knowledge transfers directly. (What is React?)
- Real native components — feels at home on each platform.
- Expo smooths the hard parts: building, signing, pushing updates without a store review for JavaScript changes, and many device APIs out of the box. (Publish an app on the App Store)
- Huge ecosystem and hiring pool.
Trade-offs: differences between iOS and Android behaviour to handle; some native modules need extra setup.
The third option: wrap your web app
If you already have a web app, Capacitor can wrap it into iOS and Android apps, or you can ship it as a PWA. Fastest route, with some limits on native feel and features. (Turn your web app into a mobile app, What is a PWA?)
How to choose
- You (or your team) know JavaScript/React, or you have a React web app: React Native with Expo.
- You want a highly custom, brand-consistent UI with rich animation: Flutter.
- You're building mostly with AI tools: both work; React Native benefits from the AI tools' depth in JS/TS.
- You need something on phones next week and already have a web app: Capacitor or a PWA.
What both still need
A mobile app is usually just the front end. It needs a back end — API, database, authentication, push notifications — running reliably somewhere. (Frontend vs backend, Web app vs mobile app)
EasySpawn runs the back end your Flutter or React Native app talks to — API, Postgres and background jobs on one server with HTTPS and daily backups. See how it works or join the waitlist.
Related: Turn Your Web App Into a Mobile App · How to Publish an App on the App Store · Web App vs Mobile App · What Is a PWA?
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