Nertivia - Chat Client - Chat with friends or anyone around the world, free gif and emoji support.
Spectrum - Browser-based app to visualize the frequencies of an audio file.
Treadie - Create your own micro-social network for topics
Amity Communities - Discuss trending topics, news, and live events in real-time
Roomvine - Chatrooms for real life venues, neighborhoods and events
The Rainmaker Platform - Build responsive websites and communities without code