Building cross-platform mobile applications for iOS and Android requires selecting a framework that balances UI fidelity, native hardware access, and developer velocity. We analyze Flutter and React Native under real-world SLA conditions.
1. Impeller Rendering Engine vs Native Bridge
Flutter compiles directly to native ARM machine code using its custom Impeller graphics engine, delivering locked 60 FPS transitions without JS bridge overhead.
| Criteria | Flutter (Dart) | React Native (JS/TS) |
|---|---|---|
| Rendering Pipeline | Custom Impeller Engine | Native Platform Views |
| FPS Benchmark | Locked 60-120 FPS | 55-60 FPS (Bridge Dependent) |
| Ecosystem Libraries | Pub.dev (High Quality) | NPM (Vast Library Choice) |
