Apple iCloud
Apple’s cloud service, which stores your music, photos, apps, contacts, calendars, and more, and wirelessly pushes them to all your devices set up with iCloud. iCloud is seamlessly integrated with your apps, so everything happens automatically. For more information, see the iCloud webpage https://apple.com/icloud
- Snippet from Wikipedia: ICloud
iCloud is a cloud service operated by Apple Inc. Launched on October 12, 2011, iCloud enables users to store and sync data across devices, including Apple Mail, Apple Calendar, Apple Photos, Apple Notes, contacts, settings, backups, and files, to collaborate with other users, and track assets through Find My. It is built into iOS, iPadOS, watchOS, tvOS, macOS, and visionOS. iCloud may additionally be accessed through a limited web interface and Windows application.
iCloud offers users 5 GB of free storage which may be upgraded through optional paid plans to up to 12 TB; all paid plans include iCloud+ providing additional features. Optional end-to-end encryption has been available since 2022 for all iCloud data, except Calendar, Contacts, and Mail, which rely on legacy sync technologies for compatibility with third-party apps (CalDAV, CardDAV, IMAP). As of 2018, the service had an estimated 850 million users, up from 782 million users in 2016.