Expo Apple Sign In

One API on three platforms

AppleAuth.signIn(), the useAppleAuth hook and AppleButton have the same API on iOS, Android and web, and every platform returns the same credential shape.

The nonce is hashed for you

Apple receives the SHA-256 hash of the nonce, and the credential carries the raw value that Supabase and Firebase check against the identity token.

Apple-style button on every platform

AppleButton draws the Apple mark with the official labels in black, white and outlined styles, from one component on iOS, Android and web.

Supabase, Clerk and Firebase adapters

One call runs Sign in with Apple and passes the identity token, plus the raw nonce where the provider needs it, to your auth service.

Native code on Expo Modules 2.0

Swift and Kotlin modules written with @ExpoModule and @JS. iOS uses AuthenticationServices, and Android runs Apple's web flow in an in-app screen.

Typed errors and a React hook

Failures carry stable codes such as ERR_REQUEST_CANCELED, and useAppleAuth exposes loading, error and credential state for custom buttons.

Add "expo-apple-sign-in" to the plugins in app.json, build a development client, and render AppleButton. iOS signs in with your App ID; Android and web use the Services ID and redirect URI passed to AppleAuth.configure. The Quick start walks through each step.

App.tsx

tsx

import { useState, type ReactElement } from 'react'
import { Text, View } from 'react-native'
import { AppleAuth, AppleButton } from 'expo-apple-sign-in'

AppleAuth.configure({
  clientId: 'com.example.app.web',
  redirectUri: 'https://app.example.com/auth/callback',
})

export default function App(): ReactElement {
  const [userId, setUserId] = useState<string | null>(null)

  return (
    <View style={{ flex: 1, justifyContent: 'center', gap: 16, padding: 24 }}>
      <AppleButton onSuccess={(credential) => setUserId(credential.user.id)} />
      <Text>{userId ? `Apple user ${userId}` : 'Signed out'}</Text>
    </View>
  )
}

expo-apple-sign-inSign in with Apple for Expo SDK 58