Redux vs Context API in React

Last updated on May 17, 2026

React Context and Redux solve different parts of the state problem. Context lets a parent make a value available deep in the component tree. Redux Toolkit gives you a predictable external store with reducers, actions, middleware, selectors, DevTools integration, and a mature ecosystem.

For React Native apps, the right answer is usually a mix: local component state for local UI, Context for low-frequency app-wide values, server-state tools or backend listeners for remote data, and Redux Toolkit only when global client state is complex enough to deserve a store.

Quick Answer

Use Context for values like theme, locale, feature flags, auth session shape, and dependency providers. Use Redux Toolkit when many screens update the same client state, when you need strict event history, middleware, offline queues, or selectors that isolate re-renders.

Avoid old Redux examples based on createStore, connect, and hand-written action constants for new work. The modern default is Redux Toolkit with React Redux hooks.

Context Is for Passing Values Deeply

Context is built into React:

import { createContext, PropsWithChildren, useContext, useMemo, useState } from 'react';

type ThemeMode = 'light' | 'dark';

type ThemeContextValue = {
  mode: ThemeMode;
  setMode: (mode: ThemeMode) => void;
};

const ThemeContext = createContext<ThemeContextValue | null>(null);

export function ThemeProvider({ children }: PropsWithChildren) {
  const [mode, setMode] = useState<ThemeMode>('light');

  const value = useMemo(() => ({ mode, setMode }), [mode]);

  return <ThemeContext.Provider value={value}>{children}</ThemeContext.Provider>;
}

export function useThemeMode() {
  const value = useContext(ThemeContext);

  if (!value) {
    throw new Error('useThemeMode must be used inside ThemeProvider');
  }

  return value;
}

This works well for values that do not update constantly. If a context value changes, React updates consumers below that provider, so split contexts when unrelated values update at different speeds.

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Redux Toolkit Is for Predictable Global State

Redux Toolkit removes much of the older Redux boilerplate:

import { configureStore, createSlice, PayloadAction } from '@reduxjs/toolkit';

type CartItem = {
  id: string;
  quantity: number;
};

const cartSlice = createSlice({
  name: 'cart',
  initialState: [] as CartItem[],
  reducers: {
    addItem(state, action: PayloadAction<CartItem>) {
      state.push(action.payload);
    },
    clearCart() {
      return [];
    },
  },
});

export const { addItem, clearCart } = cartSlice.actions;

export const store = configureStore({
  reducer: {
    cart: cartSlice.reducer,
  },
});

export type RootState = ReturnType<typeof store.getState>;
export type AppDispatch = typeof store.dispatch;

Use React Redux hooks in components:

import { useDispatch, useSelector } from 'react-redux';
import type { RootState, AppDispatch } from './store';
import { clearCart } from './store';

export function CartButton() {
  const dispatch = useDispatch<AppDispatch>();
  const count = useSelector((state: RootState) => state.cart.length);

  return (
    <Button
      title={`Clear ${count} items`}
      onPress={() => dispatch(clearCart())}
    />
  );
}

This pattern is better than class components, connect, and manual createStore setup for new React Native work.

State Decision Table

State type	Good default
Text input while editing one form	Local component state
Theme, locale, auth provider object	Context
Server data from Firebase or REST APIs	Backend listener, query/cache layer, or app data hook
Shopping cart across many screens	Redux Toolkit or a focused store
Offline mutation queue	Redux Toolkit or a dedicated persistence layer
Navigation params	Navigation state, not Redux
Animation values	Animation library state, not Context or Redux

Common Mistakes

Do not put every API response into Redux. Remote data has cache invalidation, loading, error, retry, and refetch semantics that often belong in a query layer or backend listener.

Do not use one huge Context object for rapidly changing app state. A single provider value that changes frequently can cause unnecessary renders across many consumers.

Do not choose Redux only because "the app is big." Choose it when the state has shared ownership, many update paths, middleware needs, persistence, or debugging requirements that Context alone does not cover well.

React Native-Specific Advice

In a React Native app, state choices affect perceived performance:

• keep input state local to avoid re-rendering entire forms;
• keep animation and gesture state in animation libraries;
• keep Firebase listeners scoped to screens or feature hooks;
• store only durable client state in a global store;
• memoize provider values and split providers by concern;
• profile list screens before blaming the state library.

For practical UI state patterns, see React Native App Code Snippets.

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FAQ

Does Context replace Redux?

No. Context passes values through the component tree. Redux Toolkit manages predictable global state outside React with reducers, middleware, selectors, and DevTools support.

Is Redux too much for small apps?

Often yes. Use local state and Context until the state has enough shared update logic to justify a store.

Can I use both Redux and Context?

Yes. Many production apps use Context for providers and Redux Toolkit for a small set of complex global client-state domains.

Useful Links

• Current React Native Stack
• React Native App Code Snippets
• React Context guide
• React useContext API
• Redux Toolkit getting started
• Redux Toolkit configureStore
• React Redux hooks