Mogotix was an application I built as a freelancer. It was very simple, but on the edge of new tech. Companies like Ticketmaster, and Eventbrite were not doing mobile ticketing yet.
A friend introduced me to Scott the founder and we hit it off pretty well. I built their mobile application for iOS that allowed event organizers to see a list of their events, and check in attendees via QR codes. Attendees could use the same app to see a list of their tickets, and get the QR code for it.
At the time, Flat UI's were not in so ignore the dated looking UI! Heres a video demonstration the organizers view of the app and the check in process.
This was a fully custom UI job. I took designs from PSD's and built custom UI elements for the iPhone. The hardest part of this project was getting C QR code scanning libraries embedded into the app as I had never done something like that, and CocoaPods/Carthage were non-existent at that time.