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.
Keybase Chat - End-to-end encrypted chat built into Keybase
Path Talk - Smart, Private Messaging
Hermes - Pandora Client for OS X
BeeTalk - Our world is really full of strange and interesting people.
Brie.fi/ng - Start secure group video chat