Let's say I have an old app that isn't bringing me much new revenue. I have currently have implemented two options: sign in with email + password, and "sign in with Google".
After this announcement, I would just remove "sign in with Google" as an option, and force all my users who previously used "sign in with Google" to set a password.
Okay, you do that. That's not a punishment to Apple, you might bounce some of your own users and is a choice you made exclusively.
> You can have only Apple sign in, but not only $competitor sign in.
If that's the antitrust argument, they just need to reword it say "and include another signin method" or logged out functionality. I just don't think thats a strong enough argument, as they aren't removing choice in any way only adding it, except to people with existing apps - like you - who will risk decimating all their own users.
but they aren't removing choice, they are only adding choice in their approval processes, and leaving it to the developers to decide to remove choice when they get social login fatigue but want high engagement and low friction. Looks like they dotted their I's and crossed their T's on this one.
This is cleverly done and is an option with a lot less friction that needs to leverage its potential network effects.