Twoo - With the millions of active and interesting people around the world, Twoo is one of the most interesting and practical means for finding the new people across the globe.
Pleroma - Pleroma is a free, federated social networking server built on open protocols.
Path Talk - Smart, Private Messaging
GNU social - GNU social is communication software for both public and private communications.
Friends Talk - Friends Talk is a newly launched communication app for interacting with strange people living in your surrounding area.
ZeroMe - Social network for the distributed P2P network ZeroNet.