Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.
Yapp - Yapp enables users to create personalized mobile applications for their events, gatherings, and groups.
Scala Days App - The official Scala Days App handcrafted by 47 Degrees.
Iventlist - Create an app for your event in minutes 🎟️
LineUpr - DIY mobile event app creation platform