Architecture Differences: Fabric Engine vs Skia Rendering
React Native uses the modern Fabric renderer and JavaScript Interface (JSI) for direct synchronous communication with native components. Flutter renders its UI canvas using Google's Skia or Impeller graphics engine, drawing custom pixels directly to the mobile viewport.
Code Reusability and Native Module Access
Both frameworks allow sharing up to 90% of code across iOS and Android platforms. React Native offers seamless integration for web teams using React, while Flutter requires learning Dart but offers unified cross-platform UI widgets out of the box.
Developer Hiring and Long-Term Ecosystem Support
React Native benefits from the vast JavaScript/TypeScript developer talent pool, lowering enterprise recruitment friction. Flutter provides excellent documentation and Google backing for standardized widget libraries.
Performance Benchmarks in High-Concurrency Apps
Both frameworks deliver 60 FPS performance for enterprise workflows like ERP dashboards, mobile commerce, and field logistics applications when native modules are implemented correctly.