You can create a Preneo profile using your Apple ID. To do this, tap "Mit Apple anmelden" in the app during registration, check your data, and log in with Face ID, Touch ID, or the code of your device.
You can find more information here:
Manage your apps with Sign in with Apple
Unsure which email address was used when registering via Apple ID?
This is either your Apple ID email address or an anonymized email address generated by Apple if you have selected "Hide email address".
You can view your Preneo profile email address at any time in your profile in the app. Alternatively, on your iPhone, go to "Settings," tap your name, then "Sign-In & Security," and then "Sign in with Apple." Select the Preneo app and check the email address under "This app received."
Requirements to use Apple Sign-In:
- You must use an Apple ID with two-factor authentication.
- You must log into iCloud using this Apple ID on your device.
"Sign in with Apple" is available on Apple devices with iOS 13 or later and iPadOS 13 or later.