Take a screen shot of the tickets or your red member card and at least that way you don't have to access the app again.
Oh im not worried about me, im worried about other people who aren't ready for this "upgrade" or have stuff like cracked phone screens or are fiddling with their phone being unlocked.
The worst is gonna be the people sitting at the top of the section who want to see my ticket after i got drinks and food in my hand.