Short answer: choose React Native if your team or your web product already uses React and TypeScript, if you want the platform’s own interface components, or if hiring from the JavaScript pool matters. Choose Flutter if you want a heavily custom, animation-rich interface that looks identical on every device, if you also target desktop, or if your team already knows Dart. For an ordinary product app, either will do the job, and the skill of the team matters more than the framework.
Our bias, stated plainly. BBR builds with React Native (with Expo) and Capacitor. We do not offer Flutter development. We have no reason to run Flutter down, and we have tried to give it full credit below, but you should weigh this article knowing which side of the comparison we work on.
At a glance
| Aspect | Flutter | React Native |
|---|---|---|
| Sponsor | Meta | |
| Language | Dart | JavaScript / TypeScript |
| How the interface is drawn | Its own rendering engine paints every pixel | Drives the platform’s native interface components |
| Look across platforms | Identical by default | Follows each platform by default |
| Compilation | Ahead-of-time to native machine code | JavaScript run by the Hermes engine, calling native code directly |
| Targets | iOS, Android, web, Windows, macOS, Linux | iOS, Android; web through React Native Web; desktop through community and Microsoft projects |
| Package ecosystem | pub.dev, strong first-party packages | npm, very large, quality varies |
| Hiring pool | Smaller, specialised | Large, overlaps with web developers |
| Code sharing with a React website | Little | Business logic, types, API clients and sometimes components |
| Over-the-air updates | Available through third-party services | Well established, including through Expo |
Language
Dart is a clean, statically typed language with sound null safety. Developers coming from Java, Kotlin, Swift or C# are productive in it within days, and the tooling around it is consistent because Google controls the whole chain. Its weakness is reach: outside Flutter, Dart is rarely used, so the knowledge does not transfer to your backend or website.
React Native uses JavaScript, in practice TypeScript. It is less tidy than Dart and the ecosystem moves quickly, but it is the most widely known language in software. A team can use the same language, the same types and often the same validation code in the app, the website, the admin panel and a Node.js backend. For a small company that is a real economy.
Rendering and look and feel
This is the deepest technical difference between the two.
Flutter ships its own rendering engine and draws every button, list and transition itself. The benefits are exact control over every pixel and the same result on every device and OS version. The costs are that platform conventions such as text selection, scrolling physics and accessibility behaviour are re-implemented by Flutter, not inherited, and that when Apple or Google change their design language the framework has to catch up.
React Native asks the operating system to create real native components. A switch is the platform’s switch; a text field is the platform’s text field. Apps tend to feel at home on each platform without effort and pick up OS-level behaviour automatically. The cost is that small differences between the iOS and Android components sometimes need platform-specific adjustments, and highly custom visual designs take more work than in Flutter.
A rule of thumb: if your designer wants a distinctive branded interface that looks the same everywhere, that favours Flutter. If you want the app to feel like a well-behaved iOS app on iOS and a well-behaved Android app on Android, that favours React Native.
Performance
Flutter’s ahead-of-time compilation and self-contained renderer give it smooth, predictable animation, and it has a good reputation for complex custom interfaces. React Native historically suffered from an asynchronous bridge between JavaScript and native code. Its current architecture replaced that bridge with direct calls and a new renderer, and Hermes improved start-up time and memory use.
For apps built from lists, forms, maps, media and network requests, both are fast enough that users will not know which one you used. For workloads where performance is the product, such as real-time video or demanding 3D, neither is the right tool and you should read when native development is required. One measurable difference: both add to download size compared with a native app, Flutter generally somewhat more because it bundles its engine.
Ecosystem and libraries
Flutter’s package repository is smaller but more uniform, and Google maintains many of the important packages itself, including the Firebase integrations. The framework includes a large widget set, so you need fewer third-party dependencies for interface work.
React Native sits on npm, which is vast. Almost every third-party service publishes a JavaScript SDK first. The other side of that abundance is uneven quality: some libraries are abandoned, and choosing well takes experience. Expo has reduced this problem considerably by providing a curated, maintained set of modules for camera, notifications, file system, purchases and so on, together with cloud build and submission services.
In both ecosystems, a device feature with no maintained library means writing a native module in Swift and Kotlin. Both support this well.
Hiring and team continuity
For founders this is often the deciding factor, and it is the one most affected by your location and network. In most markets there are many more developers with React and TypeScript experience than with Dart, and a competent React web developer becomes useful in React Native quickly. That makes it easier to replace a developer, bring work in-house later, or switch agencies.
Flutter developers are fewer but tend to be specialists who chose the framework deliberately, and Flutter is popular with agencies in several regions. If you already have Flutter people you trust, the smaller pool is not a practical problem. Either way, ask any vendor how a handover to another team would work; our guide to choosing an app development company covers this.
Web and desktop support
Flutter officially targets web and desktop from the same codebase, and desktop support is a real strength if you need a Windows or macOS app. On the web, Flutter paints to a canvas, which works well for application-style interfaces behind a login and poorly for content that needs to be indexed by search engines, load quickly on a first visit, or behave like a normal web page.
React Native reaches the web through React Native Web, which renders ordinary HTML elements. Many teams instead build the website with React and Next.js and share logic, types and API code with the app. If search visibility matters for your web presence, that arrangement is the stronger one.
Tooling and developer experience
Flutter’s tooling is cohesive: one SDK, one command-line tool, excellent hot reload, good built-in testing and profiling tools, and thorough official documentation. New projects start smoothly, and upgrades are usually orderly.
React Native’s experience depends heavily on whether you use Expo. With it, project setup, builds in the cloud, store submission and over-the-air updates are handled by one toolchain, and fast refresh gives a development loop similar to Flutter’s. Without it, configuration of the native projects is more manual. React Native version upgrades have a reputation for being fiddly; Expo’s managed upgrade path has made them much more predictable.
Where each one is the better choice
| Your situation | Leaning |
|---|---|
| Web product already built in React; small team covering web and mobile | React Native |
| You expect to hire developers locally or take the app in-house soon | React Native, in most markets |
| App should follow each platform’s native conventions | React Native |
| You need frequent over-the-air fixes between store releases | React Native with Expo |
| Heavily branded, custom-drawn, animation-rich interface | Flutter |
| Same app also needed on Windows, macOS or Linux | Flutter |
| Pixel-identical appearance across all devices is a requirement | Flutter |
| Team comes from Java, Kotlin or C# and dislikes JavaScript | Flutter |
| Trusted team available in one framework and not the other | Whichever that team uses |
The last row deserves emphasis. An experienced team in either framework will deliver a better app than an inexperienced team in the “right” one. Do not ask a React Native studio to build in Flutter, or the reverse.
What does not differ
- Cost and timeline. For the same scope and the same team skill, the two are close enough that the framework should not drive the budget. Scope does; see what an app costs to build.
- Store rules. Apple and Google review the result, not the framework. Payment, privacy and content rules apply identically.
- Backend. Both talk to any API. The server side of your product is independent of this choice.
- Maintenance. Both need yearly framework, SDK and OS updates.
Why BBR uses React Native
Our reasons are practical, not ideological. BBR works in TypeScript across backend, web and mobile, so one language covers a whole product and any engineer on a project can read all of it. Clients who later hire their own developers find React and TypeScript skills easier to recruit. And for apps whose interface is essentially web content or a canvas, we use Capacitor, which is how both of our published Google Play apps are built. Nora, an AI companion app BBR has in development, is built with React Native, Expo and TypeScript.
If that matches what you need, the React Native development page and the mobile app development page describe how we work. If this comparison points you to Flutter, choose a team that specialises in it. For how this decision sits within the rest of an early product’s stack, see the MVP tech stack guide.