Undagrid - Create mesh networks with physical (unpowered) things
Jodel - What is Jodel all about? Jodel is the community that shows you what's happening in your area in real-time.
FaceCat - Chat anonymously with your friends
Berkanan - Chat with people nearby. Even offline, on an ✈️.
Bubi Chat - Location based anonymous chatting app
Treadie - Create your own micro-social network for topics