Sign in with your Apple ID – Apple Support
Open the Settings app. · Tap Sign in to your [device]. On iPhone, sign in to your Apple ID in the Settings app · Enter your Apple ID and password.
Your Account – Shopping Help – Apple
Shopping online at apple.com is faster and more convenient when you have an Apple account. Your account consists of a unique Apple ID and password.
Apple 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 …