RetroShare is open source software for encrypted filesharing, serverless email, instant messaging, online chat, and BBS, based on a friend-to-friend network built on GNU Privacy Guard (GPG). Developed by DrBob
License: Open Source
OneSwarm is focused on providing anonymity and decentralized community building, making it ideal for users who prioritize privacy. In contrast, RetroShare offers a more user-friendly interface with robust content discovery and offline features, appealing to users looking for a comprehensive peer-to-peer networking experience.