Sign in with Apple
Lets people sign in to your apps and websites with their Apple Account.
Overview
Sign in with Apple lets people create an account and sign in to apps and websites with their Apple Account, without extra sign-up forms or new passwords. Apps can ask for a name and email address, and people can choose to hide their real email behind a private relay address.
On Apple platforms you add it with the AuthenticationServices framework, using ASAuthorizationAppleIDProvider or the SwiftUI SignInWithAppleButton. Websites and other platforms use Sign in with Apple JS, and your server talks to Apple through the Sign in with Apple REST API. Server-to-server notifications report email-forwarding changes and account deletions.
Private email relay
People can hide their email, and Apple forwards mail from a private relay address.
Minimal data
Apps can request only a name and email, shared once on first sign-in.
Real user signal
realUserStatus indicates whether the user appears to be a real person.
Web and servers
Sign in with Apple JS and a REST API extend it to websites and other platforms.
History
How it grew up.
Launch
Introduced at WWDC19 for apps on iOS 13 and macOS 10.15, and for websites.
App Store requirement
Apps with third-party login must also offer it: new apps from April 30, 2020.
Server notifications
WWDC20 adds a SwiftUI button, server-to-server notifications and team transfers.
Guideline relaxed
Guideline 4.8 now accepts any equivalent login service with similar privacy features.