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Deconstruct cross-platform mobile architectures. Compare React Native’s asynchronous JSON bridge with JSI C++ HostObjects, Fabric immutable shadow trees, and Flutter’s direct GPU Impeller rasterization.
Three distinct engineering philosophies for achieving native speed across iOS and Android.
JSX compiles to real OEM platform widgets (UIViews / Android Views). Direct C++ JSI bindings eliminate bridge latency, powered by Hermes AOT bytecode.
Bypasses platform widgets completely. Compiles Dart AOT into native ARM machine code and draws every pixel directly to a GPU surface at 120 FPS.
Shares 100% of business logic, networking, and databases in Kotlin, while rendering UI natively with pure SwiftUI (iOS) and Jetpack Compose (Android).
Why JSON serialization over the asynchronous bridge created UI stutter, and how JSI exposes direct C++ memory pointers.
Why React Native uses Hermes to compile JavaScript into bytecode at build time instead of JIT compiling on mobile devices.
How Fabric achieves thread-safe concurrent rendering using immutable C++ shadow nodes and Yoga layout.
Type-safe native bindings generated automatically from TypeScript specs with lazy on-demand loading.
Why Flutter bypasses OEM native widgets entirely to paint directly to GPU surfaces with pre-compiled shaders.
Sharing 100% pure business logic in Kotlin while rendering 100% native SwiftUI and Jetpack Compose UIs.