Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Tix - Tix is a state-of-the-art, cloud-based ticketing system that features fully integrated access controls, event management controls, multi-channel distribution capabilities, and a robust reporting suite.
Yapp - Yapp enables users to create personalized mobile applications for their events, gatherings, and groups.
EventTitans - Top rated event management software
Iventlist - Create an app for your event in minutes 🎟️
Brushfire - Brushfire offers tools for online registration and event management.