If you're building a cross-platform app today, two frameworks dominate the conversation: Flutter and React Native. Both let you write once and ship to iOS and Android (and increasingly the web and desktop). Both are mature, well-supported, and used by serious companies. So how do you choose? Here's how I think about it.
The core difference
React Native, from Meta, lets you build mobile apps using JavaScript and React. It renders to the platform's native UI components — your buttons are real iOS and Android buttons under the hood. That's a strength (it feels native) and a constraint (you're at the mercy of the bridge between JavaScript and native code).
Flutter, from Google, takes a different approach. It uses the Dart language and draws every pixel itself with its own rendering engine. Nothing is delegated to platform widgets — Flutter paints the whole interface. That means what you design is exactly what you get, pixel-for-pixel, on every device.
Where each one shines
- React Native is a natural fit if your team already lives in the JavaScript and React ecosystem. The learning curve is gentle for web developers, and the community is enormous.
- Flutter shines when you want pixel-perfect, highly polished UI that looks identical everywhere, strong performance, and a single codebase that genuinely extends beyond mobile to desktop and web.
Why I reach for Flutter
I'll be honest: I'm a Flutter advocate. For the work I do, the combination of consistent rendering, excellent performance, a rich widget library, and true multi-platform reach is hard to beat. Dart is a pleasant, approachable language, and the developer experience — hot reload in particular — makes iterating fast and enjoyable.
One codebase, every platform — without sacrificing the polish.
That said, the "right" choice always depends on the project and the team. React Native is a fantastic framework, and there are absolutely contexts where it's the better fit. The point isn't tribalism — it's matching the tool to the job.
The bottom line
Both frameworks are excellent. If you have an existing React team, React Native lowers the barrier. If you're starting fresh and want maximum control over your UI across the widest range of platforms, Flutter is a brilliant choice — and it's the one I keep coming back to.