Update: Apple says “Sign in with Apple” will be mandatory for third-party apps that require sign-ins, according to these new App Store guidelines. That means apps that currently use Facebook or Google to sign in will also have to support “Sign in with Apple.”
“It will be required as an option for users in apps that support third-party sign-in when it is commercially available later this year,” the new guidelines say.
Apple is targeting Facebook with a new privacy feature in iOS 13 that privately logs users into third-party apps and services.
Called “Sign in with Apple,” it aims to replace popular cross-web login services like ones offered by Facebook and Google.
The new privacy feature prevents third-party apps and web services from tracking users via their logins. It creates private, disposable logins for every service or app.