Bit Chat is a secure, peer-to-peer, open source instant messenger with end-to-end encryption. Developed by Technitium
License: Open Source
Bit Chat focuses on privacy and security with its decentralized and encrypted messaging, making it ideal for users who prioritize anonymity. In contrast, Yahoo! Messenger offers a more traditional chat experience with a user-friendly interface and integration with other Yahoo services, appealing to those who value ease of use over privacy.