Apple Account
Your Apple Account is the account you use to access Apple Services like the App Store, Apple Music, iCloud, FaceTime, the iTunes Store, and more.
An Apple Account consists of an email address and a password. In some locations, you can use a phone number instead of an email address. See the Apple Support article Use your mobile phone number to sign in to your Apple Account.
Sign in to the same Apple Account to use any Apple service, on any device. That way, when you make purchases or download items on one device, the same items are available on your other devices. Your purchases are tied to your Apple Account, and can’t be transferred to another Apple Account.
It’s best to have your own Apple Account and not share it. If you’re part of a family group, you can use Family Sharing to share purchases between family members—without having to share an Apple Account.
To learn more about Apple Account, see the Apple Account Support page. To create one, go to the Apple Account website.