react-apple-signin-auth

 Apple signin for React using the official Apple JS SDK

UI:

Code:

import AppleSignin from 'react-apple-signin-auth';

/** Apple Signin button */
const MyAppleSigninButton = ({ ...rest }) => (
  <AppleSignin
    /** Auth options passed to AppleID.auth.init() */
    authOptions={{
      clientId: 'com.example.web',
      scope: 'email name',
      redirectURI: 'https://example.com',
      state: '',
      nonce: 'nonce',
      usePopup: true,
    }}
    /** General props */
    uiType="dark"
    /** className */
    className="apple-auth-btn"
    /** Allows to change the button's children, eg: for changing the button text */
    buttonExtraChildren="Continue with Apple"
    /** Checkout README.md for further customization props. */
    /** Spread rest props if needed */
    {...rest}
  />
);

export default MyAppleSigninButton;

Props

Auth options

UI props

Extra props

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Why Apple Sign In? The Ultimate Guide to Higher Conversions and App Store Success

App Store Requirements: Mandatory Integration for iOS Apps

Apple's App Store Review Guidelines explicitly require apps that offer third-party login options to also provide Sign in with Apple. This isn't just a suggestion—it's a mandatory requirement that can determine whether your app gets approved or rejected. Apps that fail to implement Apple Sign In when offering other social login options face immediate rejection from the App Store, potentially costing developers thousands in lost revenue and delayed launches.

  • App Store Review Guideline 4.8: Mandatory Apple Sign In implementation
  • iOS 13+ requirement: All new apps must comply with Apple's authentication standards
  • Third-party login dependency: Apps using Facebook, Google, or Twitter login must include Apple Sign In
  • Rejection prevention: Avoid costly app review delays and rejections

Conversion Rate Optimization: Proven Statistics and Benefits

Industry research shows that Apple Sign In significantly outperforms traditional authentication methods in terms of user conversion and retention. Apps implementing Apple Sign In report conversion rate improvements of up to 40% compared to standard email registration flows.

  • Higher conversion rates: 25-40% improvement in user sign-up completion
  • Reduced friction: One-tap authentication eliminates form filling
  • Trust factor: Apple's brand recognition increases user confidence
  • Privacy appeal: Users prefer Apple's privacy-first approach
  • Cross-device sync: Seamless experience across iPhone, iPad, Mac, and Apple Watch

Privacy and Security: The Apple Advantage

Apple Sign In offers unparalleled privacy features that users increasingly demand. The 'Hide My Email' feature allows users to create unique, random email addresses for each app, protecting their personal information while maintaining functionality.

  • Hide My Email: Generate unique email addresses for enhanced privacy
  • Two-factor authentication: Built-in security with Apple ID
  • No tracking: Apple doesn't track users across apps
  • Data minimization: Users control what information they share
  • Secure enclave: Biometric authentication with Face ID and Touch ID

Business Impact: Revenue and User Acquisition

Implementing Apple Sign In isn't just about compliance—it's a strategic business decision that impacts your bottom line. Companies report significant improvements in key metrics after implementing Apple Sign In.

  • User acquisition cost reduction: Lower CAC due to higher conversion rates
  • Premium user segments: Apple users typically have higher lifetime value
  • App Store featuring: Better chances of being featured by Apple
  • Advertising revenue: Higher-value ad placements and better CPM rates
  • Global reach: Access to Apple's worldwide user base

Complete Implementation Guide: From Setup to Production

Integrating Apple Sign In involves several steps across different platforms. This comprehensive guide covers everything from Apple Developer account setup to frontend and backend implementation using our react-apple-signin-auth library.

Prerequisites and Development Setup

Before implementing Apple Sign In, you'll need an active Apple Developer Program membership ($99/year) and a few development tools for local testing.

  • Apple Developer Program: Required for creating App IDs and Service IDs
  • ngrok or similar tool: Apple Sign In requires HTTPS domains, even for local development
  • Static domain: Create a static ngrok domain to avoid reconfiguring Apple credentials during development

Setting Up ngrok for Local Development

Apple Sign In doesn't support HTTP domains, so you'll need to expose your local development server via HTTPS. ngrok is the most popular solution for this:

  1. Install ngrok from their official website
  2. Create a static domain in your ngrok dashboard
  3. Run: ngrok http 3000 --domain your-static-domain.ngrok.io
  4. Access your app at https://your-static-domain.ngrok.io

Apple Developer Account Configuration

You'll need to create both an App ID and Service ID in your Apple Developer account:

Creating an App ID:
  1. Sign in to Apple Developer Console
  2. Navigate to "Certificates, Identifiers & Profiles"
  3. Under "Identifiers," click the "+" button
  4. Choose "App IDs" and click "Continue"
  5. Enter description and bundle ID (e.g., com.yourcompany.yourapp)
  6. Enable "Sign In with Apple" capability
Creating a Service ID:
  1. Again in "Identifiers," click "+" and choose "Services IDs"
  2. Fill in identifier and description
  3. Enable "Sign In with Apple"
  4. Configure domains (add your ngrok domain for development)
  5. Set redirect URLs (your frontend URL for popup mode)

Frontend Implementation with React

Install and configure the react-apple-signin-auth package:

npm install react-apple-signin-auth

// AppleSignIn.js
import AppleSigninButton from 'react-apple-signin-auth';

function AppleSignIn() {
  const handleSuccess = (data) => {
    const { authorization, user } = data;
    // Send data to your backend for verification
    console.log('Apple Sign In Success:', data);
  };

  const authOptions = {
    clientId: 'your.service.id', // Your Service ID
    scope: 'email name',
    redirectURI: 'https://your-domain.com',
    nonce: 'nonce',
    usePopup: true, // Recommended for single-page apps
  };

  return (
    <AppleSigninButton
      authOptions={authOptions}
      uiType="dark"
      className="apple-auth-btn"
      onSuccess={handleSuccess}
      onError={(error) => console.error(error)}
    />
  );
}

Understanding the Apple Response

Apple's response structure varies between first-time and returning users:

// First-time user response
{
  "authorization": {
    "state": "state",
    "code": "single-use-auth-code",
    "id_token": "JWT-token-to-verify"
  },
  "user": {
    "email": "user@email.com",
    "name": {
      "firstName": "John",
      "lastName": "Doe"
    }
  }
}

// Returning user response (user object omitted)
{
  "authorization": {
    "state": "state",
    "code": "single-use-auth-code", 
    "id_token": "JWT-token-to-verify"
  }
}

Backend Verification and User Management

Verify the ID token on your backend using the apple-signin-auth package:

npm install apple-signin-auth

// backend/auth.js
import appleSignin from 'apple-signin-auth';

export const verifyAppleToken = async (idToken, user) => {
  try {
    const { sub, email, iss } = await appleSignin.verifyIdToken(idToken, {
      audience: 'your.service.id', // Your Service ID
      ignoreExpiration: false,
    });

    // sub = unique user identifier
    // email = user's email
    // iss = issuer (https://appleid.apple.com)

    // Check if user exists in database
    let existingUser = await findUserBySub(sub);
    
    if (!existingUser && user) {
      // First-time user - save profile information
      existingUser = await createUser({
        appleId: sub,
        email: email,
        firstName: user.name?.firstName,
        lastName: user.name?.lastName,
      });
    }

    return existingUser;
  } catch (error) {
    throw new Error('Invalid Apple ID token');
  }
};

Production Deployment Considerations

  • Domain verification: Update Apple Service ID configuration with production domains
  • HTTPS requirement: Ensure all domains use valid SSL certificates
  • User data storage: Apple only sends user details on first sign-in - store them immediately
  • Token expiration: Implement proper token refresh mechanisms
  • Error handling: Handle network failures and invalid tokens gracefully

Industry Adoption and Success Stories

Major companies across industries have successfully implemented Apple Sign In to improve their user experience and business metrics. From e-commerce to fintech, Apple Sign In has become the gold standard for mobile authentication.

  • E-commerce platforms: Faster checkout and reduced cart abandonment
  • Social media apps: Improved user onboarding and engagement
  • Gaming applications: Seamless login across Apple devices
  • Financial services: Enhanced security and regulatory compliance
  • Subscription services: Higher conversion from trial to paid users

SEO and Marketing Benefits

Beyond user experience, Apple Sign In implementation can boost your app's visibility and marketing performance. Apps with Apple Sign In often rank higher in App Store search results and attract more organic downloads.

  • App Store SEO: Better ranking in iOS app search results
  • Apple ecosystem integration: Featured in Apple's marketing materials
  • Premium ad placements: Access to higher-value advertising inventory
  • Developer recognition: Apple Developer Program benefits and features
  • Media coverage: Tech press coverage for privacy-focused implementations

Best Practices and Optimization Tips

Follow these proven strategies to maximize the effectiveness of your Apple Sign In implementation and achieve the highest conversion rates.

  • Button placement: Position Apple Sign In prominently above other login options
  • Visual consistency: Use Apple's official design guidelines and maintain brand consistency
  • Error handling: Provide clear, helpful error messages for authentication failures
  • Performance optimization: Lazy load the Apple SDK to improve initial page load times
  • Analytics tracking: Monitor conversion rates, drop-off points, and user behavior patterns
  • A/B testing: Test different button styles, copy, and placement to optimize conversions
  • Fallback options: Always provide alternative login methods for users without Apple devices
  • Privacy messaging: Clearly communicate your app's privacy practices to build trust

References and Further Reading: