iCloud
iCloud is built into every Apple device. You can use it to store your content securely and keep your apps up to date across all your devices where you’re signed in to the same Apple Account. With iCloud, changes you make on one device appear on all your other devices. You can also access web versions of Pages, Keynote and Numbers on iCloud.com.
For more information about iCloud, go to apple.com/au/icloud.