sign in to your Apple Account
Sign in to your Apple Account to access Apple services such as the App Store, Apple Music, iCloud, FaceTime, Apple Books, and more.
You can sign in during setup or go to Settings , tap “Sign in to your iPhone” or “Sign in to your iPad,” enter your Apple Account email or phone number, then enter your password. If you don’t have an Apple Account, you can create one.
You can view and change your Apple Account information, including your name, photo, contact information, password, security settings, and payment and shipping information.
Your information and content are available on all your devices where you’re signed in to your Apple Account. See the Apple Support article Sign in to your Apple Account.