Building separate native apps for Android and iOS doubles cost and time. Cross-platform frameworks solve this by letting one team ship both apps from a single codebase — and Flutter and React Native are the two clear leaders. Both are excellent; the right choice depends on your product, your team and your plans.
Flutter
Built by Google, Flutter renders its own UI with a high-performance graphics engine. That means pixel-perfect consistency across devices and excellent animation performance, even on budget Android phones.
Strengths
- Beautiful custom interfaces that look identical on every device.
- Smooth 60–120 fps animations out of the box.
- One language (Dart) for the whole app, with strong tooling.
- Can also target web and desktop from the same code.
Things to consider
Dart is less widely known than JavaScript, and apps are slightly larger in file size. For most business apps, neither is a real problem.
React Native
Backed by Meta, React Native uses real native components and JavaScript/TypeScript. If your team already works with React for the web, code, libraries and skills can be shared between your website and app.
Strengths
- Huge ecosystem of libraries and developers.
- Native look and feel on each platform.
- Logic can be shared with a React or Next.js website.
- Over-the-air updates for quick fixes without store review.
Things to consider
Complex animations can need extra work, and more features rely on third-party packages that must be kept up to date.
The best framework is the one that fits your product and the team who will maintain it for years — not the one with the most hype.
Performance in real life
For typical business apps — booking, e-commerce, delivery tracking, customer portals — users won't notice a difference between the two. Performance problems almost always come from poor architecture, oversized images or slow APIs, not from the framework.
How we decide
- Custom, animation-rich UI or strong branding: Flutter.
- Existing React web product or JavaScript team: React Native.
- Heavy device-specific features (Bluetooth hardware, AR, background processing): either, with native Kotlin/Swift modules where needed.
- Tight budget, fast MVP: whichever lets you reuse the most existing work.
What it costs
A cross-platform MVP typically costs 30–40% less than building two native apps, and ongoing maintenance is cheaper too because there's only one codebase to update. Plan for regular updates after launch — app stores, operating systems and devices change every year.
Have an app idea? Our mobile app development team will help you pick the right stack.
