React Native and Flutter are the two leading ways to build a cross-platform app: one codebase that runs on both iPhone and Android. React Native is maintained by Meta and uses JavaScript or TypeScript with React. Flutter is maintained by Google and uses the Dart language.
For most business apps, either will do the job well. This comparison focuses on the differences that actually affect cost, hiring and the finished product.
Side-by-side comparison
| What matters | React Native | Flutter |
|---|---|---|
| Maintained by | Meta and the community | Google and the community |
| Language | JavaScript or TypeScript | Dart |
| How the interface is drawn | Native platform components | Its own rendering engine |
| Look and feel | Matches each platform by default | Identical on every platform by default |
| Code sharing with a React website | Logic and some patterns | Limited |
| Hiring pool | Large, from web developers | Smaller but growing |
| Performance for business apps | Good | Good |
| Custom, highly designed interfaces | Possible | A particular strength |
| Access to device features | Broad, with native modules | Broad, with plugins |
| Best fit | Teams with web and React skills | Brand-heavy apps with custom design |
How each framework works
React Native lets developers write the app in React and renders real native interface components, such as native buttons and lists. The app therefore looks and behaves like other apps on each platform by default.
Flutter takes a different approach. It draws every pixel of the interface with its own rendering engine. That gives designers precise control and an identical look on iPhone and Android, at the cost of matching each platform's native feel by hand where that matters.
Team skills and hiring
React Native uses JavaScript or TypeScript and React, the same skills used for much modern web development. That means a large pool of developers and the chance for one team to work on both the website and the app.
Flutter uses Dart, a language few developers know before learning Flutter. The Flutter community is large and active, but hiring can take longer in some markets. If you have Flutter developers already, that advantage disappears.
Design and interface
If your app should feel like a standard iOS app on iPhones and a standard Android app on Android phones, React Native gets you there with less effort. If your brand wants a distinctive, custom interface that looks the same everywhere, Flutter is particularly strong.
Performance in practice
For lists, forms, maps, cameras and typical business screens, both frameworks are fast enough that users will not notice a difference. Performance problems in real projects usually come from slow APIs, large images or inefficient code, not from the framework choice.
Beyond the phone
Consider what else you need. If a web app shares much of its logic with the mobile app, React Native with a React website keeps things close. If you need desktop apps too, Flutter supports desktop targets from the same code. For simpler needs, a progressive web app may cover both phones and desktops without app stores at all. See progressive web apps explained.
Long-term upkeep
Both frameworks release updates regularly, and both require keeping dependencies current and adapting to new iOS and Android versions. Budget for regular maintenance whichever you choose, and keep the app's business logic in the backend where possible, so the mobile code stays thin and easier to update.
Questions to settle before you choose
A few practical questions usually decide the framework faster than any feature list. Who will maintain the app in two years, and what do they know? Does the app need to share code or logic with a website? How important is it that the app looks exactly like your brand guide, compared with feeling native on each phone? Which device features, such as Bluetooth, background location or payments, are essential, and are they well supported by maintained plugins?
It also helps to prototype one difficult screen in the framework you are leaning toward. A day or two spent on the hardest part of the app, such as an offline checklist or a map with live updates, reveals problems early and gives everyone confidence in the choice.
Getting through the app stores
Whichever framework you pick, publishing to the Apple App Store and Google Play involves reviews, privacy labels and account setup. Plan a week or two for the first release, and keep your release process documented so updates go out smoothly. See app store launch. The same applies to updates later, so automate builds and keep release notes short and clear.
Which one to choose
Choose React Native when
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Your team or partner already works in React and TypeScript.
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You want to share logic with a React or Next.js website.
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You prefer the app to feel native on each platform.
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Hiring from the large JavaScript pool matters to you.
Choose Flutter when
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You want a highly custom, identical design on every platform.
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Your team already knows Dart or Flutter.
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The app is heavy on custom animation and visuals.
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You also target desktop from the same code.
What we usually recommend
For most business apps, such as booking, field service, customer portals and internal tools, we lean toward React Native when there is also a React website, because shared skills and code lower the total cost. We choose Flutter when a brand-driven, highly custom interface is the priority, or when the client already has Flutter expertise.
The framework matters less than the backend, the API design and the testing process behind the app. See cross-platform apps and app backend and APIs.