Apple announced a new Sign in with Apple button as part of its iOS 13 announcements. The button offers Apple ID single-sign on functionality similar to sign-in buttons from Twitter, Facebook or Google.
Apple is marketing this as a privacy-secure sign-in option. Apple will mask user email addresses and other personal information, whilst still allowing the apps to contact users indirectly.
Users select what information to share with the destination app. You can share your real email address with the third-party app, or use the ‘hide my email’ option to forward email onwards. In the latter case, the app would only see a random anonymous email address.
Of course, apps must update to integrate the ‘Sign in with Apple’ button. A lot of apps may not want to add the Apple ID login because they cannot access customer data they want. We’ll have to wait and see how this shakes out.
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