Key takeaways
- Both frameworks let one codebase target iOS and Android, cutting cost compared with two native apps.
- Flutter draws its own interface with the Impeller rendering engine, giving consistent visuals across platforms.
- React Native renders native platform components and, since version 0.76, uses its New Architecture by default.
- Choose based on your team’s skills, design needs and existing code more than on benchmarks.
Cross-platform frameworks have become the default choice for many business apps. The two leaders, Flutter from Google and React Native from Meta, are both mature and used in large production apps. The right choice depends on your situation.
How they work
| Flutter | React Native | |
|---|---|---|
| Language | Dart | JavaScript or TypeScript |
| Rendering | Draws its own widgets with the Impeller engine | Uses native platform components |
| Architecture | Compiled Dart with its own rendering pipeline | New Architecture (JSI, Fabric, TurboModules) by default since 0.76 |
| Web and desktop | Supports web and desktop targets | Web through community projects; desktop via separate efforts |
| Recommended starting point | Flutter SDK and tooling | A framework such as Expo, as recommended in React Native’s documentation |
Strengths of Flutter
- Pixel-consistent design across iOS and Android, great for custom, branded interfaces.
- Smooth animations and rendering performance with Impeller, which became the only renderer on iOS.
- A rich set of built-in widgets and strong tooling, including hot reload.
- One codebase can also target web and desktop when needed.
Strengths of React Native
- Uses JavaScript or TypeScript, so web React developers can contribute quickly.
- Native components give a platform-native look and feel by default.
- The New Architecture improves performance and interoperability with native code.
- Expo simplifies building, updating and deploying apps.
How to choose
| If… | Lean towards |
|---|---|
| Your team writes React for the web | React Native |
| You want a highly custom, consistent design across platforms | Flutter |
| You need to share code with a React web app | React Native |
| You plan to target mobile, web and desktop from one codebase | Flutter |
| You rely heavily on platform-native UI conventions | React Native |
What matters more than the framework
- A clean architecture with clear separation of UI, state and data.
- A solid back end and API design.
- Automated testing and continuous delivery to the app stores.
- A plan for OS updates and long-term maintenance.
Both frameworks can produce excellent business apps. We often recommend Flutter for custom-designed, data-driven apps and React Native when a team’s skills or existing code are in React. Our mobile development team builds with both.
A decision example
A healthcare startup needs a patient app with a custom, branded interface, offline access to appointment details and charts that must look identical on iOS and Android. Its small team has no existing React code. Flutter fits well. A retailer whose web team already builds in React, and who wants to share business logic and hire from the same talent pool, may prefer React Native with Expo.
Questions to ask before choosing
- Which skills does our team have today, and who will maintain the app?
- How custom is the design, and how important is a platform-native feel?
- Do we need web or desktop versions from the same code?
- Which device features and third-party SDKs must we use?
Frequently asked questions
Which is faster, Flutter or React Native?
Both perform well for business apps. Flutter’s own rendering gives consistent animation performance; React Native’s New Architecture closed many past gaps. Real performance depends more on app design.
Is Dart hard to learn?
Developers familiar with Java, C# or JavaScript usually pick Dart up quickly.
Can we switch frameworks later?
Switching means rewriting the front end, so choose carefully. A clean back end and API make any future switch easier.
