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 user-friendly messaging and collaboration, making it ideal for smaller teams. In contrast, Zulip offers advanced features like threaded conversations and analytics, making it more suitable for larger, project-driven teams.