Ultimate Guitar Pro is a cross-platform service.
To use your Apple subscription across multiple devices and platforms, you must log in to the account linked to your subscription.
Note: If you registered using Google, Facebook, or Apple, you need to log in with the corresponding account.
What if I can’t log in with my account?
If you purchased a subscription while logged out of your account in the iOS or Android app, it was tied to your device. In this case, Pro features will only be accessible on that device.
Cross-Platform Subscription
To use your subscription across multiple platforms:
Open the mobile app.
Tap the Settings icon.
Use the Sign Up button.
Return to Settings.
Tap Restore Purchases to link your subscription to your account.