https://support.apple.com/en-mide/guide/ipad/ipad995bbafe/ipados
Sign in and manage your Apple Account on iPad - Apple Support
On iPad, sign in to your Apple Account to access Apple services such as the App Store, FaceTime, iCloud, iMessage, and more. Add or edit payment methods for...
manage your apple accountsignipadsupport
https://support.apple.com/en-by/guide/mac-help/mchlc0548d6e/mac
Manage your Apple Account sign-in details on Mac - Apple Support (BY)
In Apple Account settings on your Mac, you can add or remove the email addresses and phone numbers that you use to sign in.
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