Before a mobile app is designed or quoted, one technical decision shapes everything that follows: build two native apps, or one cross-platform app with Flutter or React Native? Each option is used by successful products, so there is no universally right answer. This guide compares native development, Flutter and React Native on the points that matter to a business — cost, speed, performance, hiring and maintenance — and explains which one fits which kind of app.
This guide is part of our mobile app development services resources, which explain how we plan, build and support this kind of work.
The three approaches
Native means two separate apps: one for iOS written in Swift, one for Android written in Kotlin. Each uses its platform’s own tools and components.
Flutter is Google’s cross-platform framework. You write one app in Dart, and Flutter draws its own interface on both platforms, compiled to native code.
React Native is Meta’s cross-platform framework. You write one app in JavaScript or TypeScript using React, and it renders real native components on each platform.
Side-by-side comparison
| Native | Flutter | React Native | |
|---|---|---|---|
| Codebases | Two | One | One |
| Typical cost | Highest | Lower | Lower |
| Time to market | Slowest | Fast | Fast |
| Performance | Best | Very good | Very good for most apps |
| UI consistency across platforms | Each platform looks native | Pixel-identical by default | Native components, small differences |
| New platform features | Available first | Via plugins or native code | Via libraries or native code |
| Code sharing with web | None | Limited | Good with a React web app |
| Hiring pool | Two skill sets | Dart developers | Large JavaScript and React pool |
When to build native
- The app depends on heavy device features: advanced camera processing, augmented reality, Bluetooth hardware, background audio or tight OS integration such as widgets and watch apps.
- Performance is the product — games, real-time media or complex animations at high frame rates.
- You need new iOS or Android features on day one.
- You have the budget and team to maintain two codebases long term.
When to choose Flutter
- You want one team and one codebase for both platforms.
- Brand consistency matters: the same custom design on iOS and Android.
- The app is a typical business or consumer app — accounts, content, forms, payments, maps, notifications.
- You may later add web or desktop versions from the same code.
Read more about our Flutter app development work.
When to choose React Native
- Your team or product already uses React and TypeScript on the web.
- You want to share business logic, types and API clients between web and mobile.
- You value a large hiring pool and ecosystem of JavaScript libraries.
- You want over-the-air updates for JavaScript fixes between store releases.
Read more about our React Native app development work.
Common myths
- “Cross-platform apps feel cheap.” Poorly built apps feel cheap in any framework. Well-built Flutter and React Native apps are hard to tell from native for most use cases.
- “Cross-platform means no native code.” Most serious cross-platform apps include some native modules for platform-specific features. Plan for it.
- “One codebase halves the cost.” It reduces cost, but design, backend, testing on both platforms and store work still apply. Savings are real but rarely 50%.
A quick way to decide
- List the device features your app needs. If several are on the “native” list above, lean native.
- Check your team: React web developers point to React Native; no existing preference makes Flutter and React Native equally viable.
- Compare quotes for the same scope, including three years of maintenance.
- Prototype the riskiest feature first if you are unsure.
Whatever you choose, the backend and APIs behind the app matter just as much. Our mobile app development services cover both.
Frequently asked questions
Is Flutter or React Native faster?
Both are fast enough for the vast majority of apps. Flutter has a slight edge in consistent animation performance; React Native’s newer architecture has narrowed the gap considerably.
Can I switch frameworks later?
Yes, but it usually means rewriting the app. Your backend and APIs can stay the same, which is a good reason to keep business logic on the server.
Will Apple or Google reject a cross-platform app?
No. Both stores accept Flutter and React Native apps, and the review rules are the same as for native apps.
Which option is cheapest to maintain?
Usually a single cross-platform codebase, because fixes and features are written once. Budget for OS updates every year whichever you choose.