iMessage

iMessage is an instant messaging service developed by Apple Inc. that functions exclusively on Apple platforms, including iOS, iPadOS, macOS, watchOS, and visionOS. It allows users to send text messages, images, videos, and documents, as well as get delivery and read statuses, and end-to-end encryption. iMessage was launched in 2011 and has since become a major feature of Apple's ecosystem. It has undergone several updates, including the addition of features such as location sharing and message effects. In 2020, Apple announced a redesigned version of the macOS Messages app, which adds features previously unavailable on the Mac.learn more on wikipedia