Guestboard - Lead powerfully-organized group events with Guestboard – a modular event platform that gives groups of 10-1000+ people a central space to coordinate, build excitement, and save money. No more crazy email threads. No more massive group texts.

guitarLayers - guitarLayers is a professional macOS guitar learning software.

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

AudioBus - With Audiobus, the revolutionary new inter-app audio routing system, you can connect your...

Mobilizon - A free and federated tool to get our events off Facebook

LiveTrax - LiveTrax is an app by MasterMedia Productions through which musicians can control the playback of their favorite track during live performances by using simple controls.