Bitmessage is a decentralized, encrypted, peer-to-peer, trustless communications protocol that can be used by one person to send encrypted messages to another person, or to multiple subscribers.
License: Open Source
Bitmessage focuses on decentralized, anonymous messaging, making it suitable for users seeking strong privacy. In contrast, ChatSecure offers a user-friendly experience with features like group messaging and multi-platform support, appealing to those looking for a more conventional chat application while still maintaining a level of security.