Choosing between Flutter and React Native is one of the most common decisions I help clients make during initial planning. Both frameworks have matured significantly and can deliver excellent production apps — but they have meaningful differences that should influence your choice.
Performance
Flutter compiles to native ARM code and renders using its own Impeller engine, bypassing native UI components entirely. React Native's new architecture (JSI + Hermes) dramatically closed the gap — but Flutter remains the leader for animation-heavy and graphics-intensive apps.
Developer Experience
Flutter uses Dart — a typed language most developers learn in a few days. React Native uses JavaScript/TypeScript, familiar to any web developer. If your team is already building with React, React Native is the obvious choice. For mobile-first teams starting fresh, Flutter's tooling and hot-reload experience is exceptional.
UI Consistency
Flutter renders exactly the same UI on iOS and Android — every pixel is controlled by Flutter's engine. React Native renders native platform widgets, which look right on each platform but can differ between them. Flutter wins for pixel-perfect brand consistency; React Native wins for platform-native feel.
Ecosystem & Libraries
npm has 1 M+ packages vs pub.dev's 30,000+ Flutter packages. For most common features both ecosystems have excellent options. For very niche integrations, React Native's npm access often wins.
My Recommendation
Choose Flutter if: you need consistent cross-platform UI, you're building animation-heavy or custom-design apps, or you're starting a new mobile-focused team. Choose React Native if: your team already knows JavaScript/React, you need maximum npm access, or you want OTA update capability (CodePush).