GoodBarber - GoodBarber is a mobile app creation platform.
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.
Dropsource - Mobile development platform for building native iOS & Android apps
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Bizness Apps - Create your own app or become a reseller and build apps for others
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.