Every cross-platform comparison you read is written by someone who has already picked a side. This one has a recommendation too, but the reasoning is laid out so you can disagree with it where your situation differs.
The architectural difference that explains everything else
Flutter and React Native solve the same problem in fundamentally different ways, and almost every practical difference follows from this one distinction.
Flutter ships its own rendering engine. It does not use the platform's UI components — it draws every pixel itself, the way a game engine does. Dart code compiles ahead-of-time to native ARM.
React Native renders real platform components. A <Button> becomes a genuine UIButton on iOS and a genuine Android button. JavaScript drives them, now through the New Architecture's JSI rather than the old asynchronous bridge.
| Flutter | React Native | |
|---|---|---|
| Language | Dart | JavaScript / TypeScript |
| UI | Own rendering engine | Native platform components |
| Consistency across OS | Pixel-identical | Follows each platform |
| OS design updates | You wait for Flutter | Often inherited free |
| Hiring pool | Smaller, growing | Very large — any React dev |
| Web code reuse | Limited in practice | High with React on web |
Performance: closer than the arguments suggest
For the overwhelming majority of business apps — forms, lists, dashboards, checkout flows — both are fast enough that users cannot tell. The differences appear at the edges:
- Heavy animation and custom-drawn UI favour Flutter. Owning the renderer means no bridge and no platform-widget constraints.
- Long lists with complex cells used to favour Flutter clearly; the New Architecture has narrowed this considerably.
- App size favours React Native slightly — Flutter ships its engine with the binary.
- Startup time favours Flutter, because AOT-compiled Dart has no JavaScript bundle to parse.
If your app is a CRUD interface over an API — and most business apps are — performance should not be your deciding factor. Hiring, ecosystem and existing team skills should be.
The questions that should actually decide it
Do you already have React developers?
If your web front end is React and your team writes TypeScript daily, React Native lets them ship a mobile app without learning a new language, and lets you share validation logic, API clients and types. That is a large, real advantage — often larger than any rendering benchmark. If you are building that web front end too, our MERN stack and React Native teams work from the same codebase conventions.
Does the app need to look identical on both platforms?
Brand-led products with a strong custom design system are a natural fit for Flutter — you design once and it renders identically everywhere. If instead you want the app to feel native to each OS, with platform-standard navigation and controls, React Native gets you there with less fighting.
How deep do you go into native APIs?
Both handle camera, GPS, biometrics, push notifications, Bluetooth and NFC through mature packages. If you need something genuinely unusual — a specific SDK from a hardware vendor, for instance — check package availability for both before you decide. This is where projects get stuck, not on rendering.
What is the realistic team size?
One codebase instead of two is the whole point of cross-platform. Against separate Android and iOS native builds, a single cross-platform codebase typically removes a third to a half of the build effort — and, more importantly, removes the ongoing cost of keeping two apps at feature parity.
When you should not use either
Go fully native when:
- The app is the product and the UI is the differentiator — a camera app, a professional audio or video tool.
- You need day-one support for brand-new OS features every year.
- You need the absolute minimum binary size or battery draw.
- Heavy on-device ML or AR is central to the experience — though AR/VR work increasingly has viable cross-platform paths.
Our recommendation
For a new business app with no existing React team, we recommend Flutter — the tooling is coherent, the rendering is predictable across a fragmented Android device landscape, and Dart is a small language to learn. We wrote about how it reached that point in Flutter has finally grown up.
For a team already deep in React, we recommend React Native — the shared skills and shared code will outweigh any rendering advantage in practice.
Both are correct answers. The wrong answer is picking on benchmark blog posts instead of on your team.
We build in both. See Flutter app development and React Native development, check indicative pricing, or tell us about the app and we will give you a straight recommendation. We are also hiring Flutter developers if you would rather be on the building side.