How does this prevent ticket forgery? I see a moving logo and the bar at the bottom, but what keeps me from creating a GIF overlay with that info for any pic?
Couple things help this. Clock ticking, colors aren't known until late, it's part of the app (you could tap "back"). But honestly, many of these events we work with weren't scanning barcodes. They were just collecting the paper tickets (which obviously can be printed over and over again) because scanning felt overkill. It's not right for every event, but, think about a 50 person smoked-BBQ event at your local brewery -- they're having the event to build their community and scanning barcodes seems weird for them.
Yes! I have many customers who run events with anything from 50-1000 people and nobody wants to be bothered with scanning, even with the obvious advantages it provides.