Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Zoho Backstage - Plan, run, and analyze your event— all from one place
Yapp - Yapp enables users to create personalized mobile applications for their events, gatherings, and groups.
List and Invite - Create an event, make a wishlist and share it with guests
Iventlist - Create an app for your event in minutes 🎟️
PodKoi - Find podcasts to be interviewed on & guests to interview.