Empathy is an instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication over various IM protocols. Developed by The GNOME Project
License: Open Source
Empathy focuses on enhancing customer interactions with an emphasis on emotional intelligence and support, while Nimbuzz offers robust communication features like voice and video calls, making it more suitable for general messaging needs.