Chalk - Chalk is a calculator that tries to do right what others do wrong.
Roomvine - Chatrooms for real life venues, neighborhoods and events
Public - Group chats.
Spectrum - Browser-based app to visualize the frequencies of an audio file.
Slaask - Slaask enables you to set up a dedicated live chat channel on your Slack.
Berkanan - Chat with people nearby. Even offline, on an ✈️.