iMessage is an instant messaging service developed by Apple Inc. for iOS and macOS devices. It allows users to send text messages, pictures, videos, contacts, documents, and other content to other users. iMessage is integrated with the Messages app on iOS and macOS, and allows users to send and receive messages over cellular data or Wi-Fi. It also allows them to use Apple's iMessage service to send and receive messages to other Apple devices, such as iPads and Macs, as well as other iOS and macOS devices. iMessage also supports third-party apps, such as Sticker packs, games, and payments. iMessage is secure and encrypted, ensuring all messages sent and received are kept private.
Discontinued empathy is not currently maintained. The latest version, 3.25, released in August 2017, can still be downloaded from the official website.