Stealthy: Secret Messenger - Chat anonymously with friends & strangers
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Berkanan - Chat with people nearby. Even offline, on an ✈️.
Invision - Prototyping and collaboration for design teams
Roomvine - Chatrooms for real life venues, neighborhoods and events
Sketch - Professional digital design for Mac.