Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Siberian CMS - Siberian is an Open-Source and Free App Maker. Unlimited Push Notifications. Unlimited features. Fully Customizable. Download it and build your own app now!
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
GoodBarber - GoodBarber is a mobile app creation platform.
pretix - pretix helps you to sell tickets for your event in an easy way. It supports multi-lingual events and provides a wide range of features
Bizness Apps - Create your own app or become a reseller and build apps for others