I don't like that idea. First, personally, I'll rather pass than install that app.
Second, it would need to heavily rely on device fingerprinting and obfuscation to give scalpers hard time trying to modify the app. Software protection will likely fail anyway when both scalpers and people buying from them have aligned interests. Even if the software protection holds, the price of second-hand phones may be too low compared to price of the tickets, so the "transferability fee" has a practical ceiling, especially since the phone can be sold again afterwards.
really? I already use axs and ticketmaster apps for tickets. Are you using pdfs or something? The app is nice because it rotates the barcode every minute, and idk how else you'd achieve that. I guess a webapp could work.
I don't think you need to rely on device fingerprinting, just make sure they're logged into their ticketing account. You might see people start to sell accounts with single/pair tickets but that just sounds like a pain, and we could mitigate it if it becomes a problem.
Second, it would need to heavily rely on device fingerprinting and obfuscation to give scalpers hard time trying to modify the app. Software protection will likely fail anyway when both scalpers and people buying from them have aligned interests. Even if the software protection holds, the price of second-hand phones may be too low compared to price of the tickets, so the "transferability fee" has a practical ceiling, especially since the phone can be sold again afterwards.