How do you design a scalable state management strategy for multi-module React Native apps?

Scalable state management requires separating global, feature, and UI state with clear ownership boundaries.

In large React Native apps, state is divided into multiple layers: global state (auth, user session), feature state (module-specific like payments), and local UI state. Tools like Redux, Zustand, or Recoil are used depending on complexity. The key principle is minimizing shared state and avoiding unnecessary global state pollution. Each module should own its state and expose only required selectors or actions.