Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Tiny Flashlight + LED - Tiny Flashlight + LED is free to use application that can be used anywhere else, having nicely built-in functionality.
Zoho Backstage - Plan, run, and analyze your event— all from one place
Hmu - Hmu is a social app by SC Friends that enables users to search for new friends by viewing a list of users from all around the globe and tap on the desired profile to engage in live chat with them.
Meetup for iOS and Android - Discover groups that are all about the things you love
Flashlight - Control your Mac with a keystroke.