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
Adium is a highly customizable messaging client focused on text communication and security, while Trillian offers a comprehensive multi-platform experience with robust audio and video capabilities. Adium is best suited for users prioritizing customization and security, whereas Trillian is ideal for users seeking an all-in-one communication solution across devices.