Almost every client call I take gets to the same question sooner or later: should we build this in React Native or Flutter? Both are mature and both have shipped apps used by millions of people. Either one can build most apps. So the useful question is which one fits your team, product and budget.
Here's how I decide.
The short answer
- Pick React Native if your team already writes JavaScript or TypeScript, you have (or plan) a React web app, or you want to share code and developers between web and mobile.
- Pick Flutter if the app is mostly custom, pixel-perfect UI that must look identical on every platform, and your team is happy to learn Dart.
For most business apps I build (marketplaces, booking, delivery, internal tools, social features), React Native is my default. Here's why, and when I'd go the other way.
1. Who will maintain the app?
This matters more than benchmarks. An app lives for years, and someone has to fix bugs and add features long after launch.
JavaScript and TypeScript developers are easy to hire almost everywhere, Pakistan included. A React web developer can become productive in a React Native codebase within days. With Flutter you're hiring Dart developers, a smaller pool, or paying for people to learn the language.
If you already have a web team, React Native lets the same people work across both products.
2. Code sharing with the web
React Native shares the React mental model, and often real code, with your web app: validation, API clients, state management, types and business logic. On recent projects I've kept a shared TypeScript package used by both a Next.js site and the mobile app. A bug fixed once is fixed everywhere.
Flutter does have web support, but it renders to a canvas, so it suits app-like experiences better than content sites that need SEO.
3. Look and feel
React Native renders real native components. A switch looks like an iOS switch on iOS and an Android switch on Android, and accessibility, text selection and keyboard behaviour come from the platform.
Flutter draws every pixel itself. That's great when a brand wants exactly the same custom design everywhere, and it's why Flutter shines for highly animated, design-led apps. It's less great when users expect platform conventions.
4. Performance
For typical business apps, users won't notice a difference. React Native's New Architecture (Fabric and TurboModules) removed most of the old "bridge" bottlenecks, and Hermes keeps startup fast. Flutter is excellent at smooth, complex animation.
Where performance really breaks, it's almost always the app's code, not the framework: lists rendering thousands of items without virtualisation, oversized images, or state changes that re-render the whole screen.
5. Ecosystem and native features
Both have plugins for the usual needs: camera, maps, push notifications, payments, biometrics. React Native benefits from the huge npm ecosystem and from Expo, which now handles builds, over-the-air updates and most native modules without touching Xcode or Android Studio. That alone saves days on a typical project.
What I tell clients
If you have no strong reason to choose otherwise, start with React Native + Expo + TypeScript. You'll ship faster, hire more easily, and keep the door open to sharing code with your website.
Choose Flutter when the design is the product and must be identical everywhere, or when your team already knows Dart.
Planning an app and not sure which way to go? Tell me about your project and I'll give you an honest recommendation, even if it isn't the stack I'd build it in.