Adium is an Open source multi-protocol instant messaging client for Mac OS X, supports MSN, Jabber, Yahoo! and other networks. Developed by Adium Team
License: Open Source
qutIM is a lightweight and customizable messaging client that supports multiple protocols, making it ideal for users seeking flexibility and performance. In contrast, Adium offers a more user-friendly interface and better integration with macOS features, but it is primarily designed for that platform.