How each one renders
Flutter renders every pixel itself via Skia/Impeller — that's why UI looks identical across iOS and Android. React Native maps JS components to real native views (UIKit, Android Views, and increasingly the New Architecture with Fabric). This is why animations tend to be smoother in Flutter and why native look-and-feel is easier in React Native.
Language and learning curve
Flutter uses Dart — small language, easy to learn, unfamiliar to most teams. React Native uses TypeScript/JavaScript, which most product teams already speak. If you already have web engineers, React Native lets them ship mobile in weeks; Flutter is a fresh tool for almost everyone.
Performance in the real world
Both hit 60 fps in normal apps. Flutter has an edge in heavy animation and custom drawing (charts, canvas, games). React Native's New Architecture closes the gap on cold start and jank for list-heavy screens. For CRUD-style apps, users won't tell them apart.
Ecosystem and native modules
React Native has more third-party native modules for niche hardware (Bluetooth peripherals, POS scanners, specialised camera flows). Flutter's package ecosystem is smaller but higher quality on average. If you need an obscure SDK, check both pub.dev and npm before committing.
Hiring in India
React Native developers are easier to find and typically cheaper (they overlap with the huge React web talent pool). Flutter developers are more specialised — smaller pool, competitive salaries. If you can't guarantee a stable in-house team, React Native reduces bus-factor risk.
Long-term maintenance
Flutter's release cadence is predictable and breaking changes are rare after 3.0. React Native's ecosystem moves faster and third-party libraries occasionally lag major upgrades. Both are safe bets for the next 3–5 years.