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iMessage is an instant messaging service developed by Apple Inc. It is supported by the Messages application in iOS 5 and later and OS X Mountain Lion and later.

iMessage
IMessage Icon.png
Messages iOS 7 Screenshot.png
A thread of conversation and media in the Messages application on iOS 8
Developer Apple Inc.
Type Instant messaging service
Launch date October 12, 2011 (2011-10-12)
Operating system iOS, macOS, watchOS
Status Active
Website support.apple.com/explore/messages

iMessage is an instant messaging service developed by Apple Inc. It is supported by the Messages application in iOS 5 and later and OS X Mountain Lion and later.