Sign in with your Apple ID – Apple Support
Your Apple ID is the account that you use to access all Apple services and make all of your devices work together seamlessly.
iCloud
Sign in to iCloud to access your photos, videos, documents, notes, contacts, and more. Use your Apple ID or create a new account to start using Apple …
How to Sign in to Your Apple ID Account on an iPhone – YouTube
In this video I am going to show Here’s How to Sign Into …