Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Event Calendar App - A simple, easy to manage, way of displaying events
Zoho Backstage - Plan, run, and analyze your event— all from one place
Meetup for iOS and Android - Discover groups that are all about the things you love
List and Invite - Create an event, make a wishlist and share it with guests
Loxi - Easily add an events calendar to any website.