Bit Chat is a secure, peer-to-peer, open source instant messenger with end-to-end encryption. Developed by Technitium
License: Open Source
Adium is a highly customizable messaging app that supports multiple protocols and offers a wide range of features, but lacks encryption and advanced privacy controls. Bit Chat, on the other hand, focuses on security with end-to-end encryption and supports voice and video calls, making it ideal for privacy-conscious users.