YC Startup Class - A live, one-hour class by Sam Altman on Platzi
Stealthy: Secret Messenger - Chat anonymously with friends & strangers
CS183B - Startup Class - Stanford class taught by Sam Altman & guest speakers
Berkanan - Chat with people nearby. Even offline, on an ✈️.
Radiohere - Hand curated multi lingual online radio stations
Vuash - Send secret messages safely.