iPhone/iPad unique identifier BESIDES UUID/UDID?

Question

The project I am on is requesting two (or even three) unique identifiers from the iPhone or iPad. I know, I know... the UDID should be enough but we are trying to see if th

Answer 1

DeviceCheck API in iOS 11 is an interesting solution to get unique Identifier, the advantage it has is - the value will be retained even after the app in uninstalled. So use cases like trial installation and rewards can be effectively controlled by developers.