ICloud

iCloud is a set of cloud services integrated with Apple platforms, launched alongside iOS 5 as the successor to MobileMe. It provides 5 GB of storage to all users, with 50 GB, 200 GB, and 2 TB storage tiers available by subscribing to iCloud+.

Its services include:


 * iCloud Mail, Calendar, Contacts, Notes, and Reminders
 * iCloud Drive (general file storage)
 * iCloud Photos
 * iCloud for Messages (full Messages conversations backup)
 * iCloud Music Library (music library backup, formerly iTunes in the Cloud)
 * Find My
 * iCloud Keychain
 * Device backup and settings sync
 * Data sync for various Apple and third-party apps

It additionally provides infrastructure for features such as Handoff.

iCloud+ subscribers additionally receive these services:


 * Private Relay (VPN-like service)
 * HomeKit Secure Video (home security camera footage backup)
 * Family Sharing of iCloud storage and all other iCloud+ benefits