Hello! Now i build app for iOS and Android. And user accounts in app have unique identifier. On Android i can use Google Play Games authorization. On iOS i use Game Center, but i have a problem: Apple moderators reject my app if i require Game Center authorization, because it must be optional, not necessary.
Can i find any unique string on iOS device, which persistent, always accessible, not changes after install, delete or reinstall app, and unique for device?...
iOS unique identifier
Can i find any unique string on iOS device, which persistent, always accessible, not changes after install, delete or reinstall app, and unique for device?...
iOS unique identifier