IMessage

iMessage is an instant messaging service developed by Apple and launched on October 12, 2011. iMessage functions exclusively on Apple platforms, including iOS, iPadOS, macOS, watchOS, and visionOS. iMessage uses the Messages app client. Core features of iMessage include sending text messages, images, videos, and arbitrary files to individual recipients and group chats; getting delivery and read statuses (read receipts); and end-to-end encryption so only the sender and recipient can read the messages. The service also allows sending location data and stickers. On iOS and iPadOS, third-party developers can extend iMessage capabilities with custom extensions. iMessage was introduced with iOS 5 in 2011, and added to Macs with OS X Mountain Lion in 2012. In 2020, Apple introduced a redesigned Mac version of the Messages app with macOS Big Sur, adding some of the features previously unavailable on the Mac, such as location sharing and message effects.