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.[1] It is built into iOS, iPadOS, watchOS, tvOS, macOS, and visionOS. iCloud may additionally be accessed through a limited web interface and Windows application.