qutIM is free and open-source multiprotocol (ICQ, Jabber, Mail.Ru, IRC, VKontakte) instant messenger. Developed by Rustam Chakin & Ruslan Nigmatullin
License: Open Source
qutIM is an open-source, customizable messaging client that supports multiple protocols, making it ideal for users who need flexibility and control. In contrast, KakaoTalk offers a rich multimedia experience and strong privacy features, catering primarily to users seeking a user-friendly interface and integrated services.