How does state management work in React Native?

React Native uses the same state management patterns as React web — the same libraries work without modification. 1. useState (local state): component-level state. Best for UI state, form values, toggles: const [isLoading, setIsLoading] = useState(false);. 2. useContext (shared state): share state across component tree without prop drilling: const ThemeContext = React.createContext("light"); function App() { return ( <ThemeContext.Provider value="dark"> <Screen /> </ThemeContext.Provider> ); } function Screen() { const theme = useContext(ThemeContext); }. 3. Redux Toolkit (complex global state): for large apps with complex state: npm install @reduxjs/toolkit react-redux. Same setup as React web. Works perfectly in React Native. 4. Zustand (simpler alternative to Redux): import { create } from "zustand"; const useStore = create(set => ({ bears: 0, addBear: () => set(state => ({ bears: state.bears + 1 })) })); // In component: const { bears, addBear } = useStore();. 5. Jotai / Recoil (atomic state): atomic state management — similar to useState but shareable. 6. MobX (reactive): observable state, automatic tracking. What to use: useState for local; Context for small shared state; Zustand/Redux Toolkit for complex global state. React Query / TanStack Query for server state (caching, refetching, loading states). Most React Native apps use: useState + Context + React Query (or SWR) + Zustand/Redux Toolkit for different layers.