Huh, it works just fine in the UK. Wonder if they have different builds (or completely different apps) for different regions. Or maybe it's the GrapheneOS compatibility layer that makes it work? Not sure.
Huh, it works just fine in the UK. Wonder if they have different builds (or completely different apps) for different regions. Or maybe it's the GrapheneOS compatibility layer that makes it work? Not sure.
Play Integrity has several levels. GrapheneOS MEETS_BASIC_INTEGRITY, which I believe only requires a locked bootloader and no superuser.
There's also been some discussion of spoofing MEETS_DEVICE_INTEGRITY, since before Android 13 it didn't rely on a TPM, and many apps don't want to lock out older devices, but it's been decided against it [0].
[0] https://github.com/GrapheneOS/os-issue-tracker/issues/1986
I saw on the GrapheneOS forums that some people had managed to get it working, but I was unable to do so.
My bootloader is locked, because I re-locked it after installing GrapheneOS. The app runs, but refuses to let me log in. I even tried (temporarily) using a browser to login, and let the browser switch to the app in the process. Nada.
It's ridiculous that Google bills their "DEVICE INTEGRITY" initiative as a security feature, when GrapheneOS, which is a more secure platform, cannot use it.
Hmmmm.... Actually you can have an unlocked bootloader for the basic integrity level.[0]
[0] https://developer.android.com/google/play/integrity/verdicts