qutIM is free and open-source multiprotocol (ICQ, Jabber, Mail.Ru, IRC, VKontakte) instant messenger. Developed by Rustam Chakin & Ruslan Nigmatullin
License: Open Source
Empathy is a versatile communication tool with a user-friendly interface and robust features, suitable for group chats and multimedia communication. In contrast, qutIM is a lightweight, open-source client that emphasizes speed and privacy but may lack some of the advanced features found in Empathy.