This question generates an enormous amount of benchmark content, almost none of which will determine whether your project succeeds. Both frameworks ship serious applications at scale. The decision is about your team and your product, not frame rates.
The one real technical difference
Flutter draws its own interface. React Native maps to the platform's native components. Everything else downstream follows from that.
Flutter therefore looks pixel-identical on Android and iOS, and you get complete design freedom. React Native inherits each platform's native look and behaviour automatically — scroll physics, text selection, accessibility conventions — because it is using the real controls.
Neither is better. They suit different products. If your brand demands an identical custom interface everywhere, Flutter's model is an advantage. If your app should feel unmistakably native on each platform, React Native gives you that without effort.
| Flutter | React Native | |
|---|---|---|
| Language | Dart | JavaScript or TypeScript, with React |
| Interface | Draws its own widgets | Uses each platform's native components |
| Look on Android and iOS | Pixel-identical, fully custom | Native look and behaviour on each |
| Sharing code with a web product | Limited, unless the web app is also Flutter | Validation, types and business logic |
| Hiring | Smaller pool of Dart developers | Large pool of React developers |
| Performance | Compiles to native code; fast enough for nearly every app | Compiles to native code; fast enough for nearly every app |
| Best fit | A strong custom design language, animation-heavy interfaces | Teams that already build their web product in React |
Choose React Native if
- Your web product is React. Your engineers already know the language, the component model, and the tooling.
- You want to share validation, types, or business logic between web and mobile.
- You want over-the-air updates to ship fixes without waiting for store review.
- You are hiring in a market where React developers are far easier to find than Dart developers.
Choose Flutter if
- You have a strong custom design language that should look identical across platforms.
- Your app is interface-heavy with significant custom animation.
- You have no existing React investment, so there is no shared-knowledge advantage to preserve.
- You want a single toolchain that also targets desktop reasonably well.
What about performance?
Both compile to native code and both are fast enough for essentially every business and consumer application. If your app feels slow, the cause is almost always how lists are rendered, how images are loaded, or how much work happens on the main thread — not the framework.
The genuine exceptions are narrow: real-time graphics, heavy media processing, or needing a brand-new platform API on day one. If you are in one of those, you are probably looking at native anyway.
When neither is right
A meaningful share of the apps businesses commission do not need to be apps. If yours does not use the camera seriously, does not need background location, and would not benefit from store discovery, a progressive web app may serve you better for considerably less — installable, offline-capable, and updated instantly.
That question is worth asking properly before choosing between two frameworks you may not need.