iCloud offers free mail, contacts, calendar, and other features that are easy to set up and use. It lets you share family purchases, backs up your iOS devices, and helps you find lost devices.
iCloud stores your photos and videos, documents, music, calendars, contacts, and more. It pushes your up-to-date content automatically to all your iOS devices and computers signed into iCloud with the same Apple ID.
You have access to iCloud only with your own personal Apple ID and password.If you forgot them,the access to your iCloud account is restricted.