qutIM is free and open-source multiprotocol (ICQ, Jabber, Mail.Ru, IRC, VKontakte) instant messenger. Developed by Rustam Chakin & Ruslan Nigmatullin
License: Open Source
Disa is a highly customizable multi-protocol messaging app that excels in managing multiple accounts and notifications, while qutIM offers robust voice and video calling capabilities along with offline messaging. Users seeking flexibility and integration with various platforms may prefer Disa, while those prioritizing communication features may find qutIM more suitable.