I’d like to use it for the Rose Bowl rather than provide a physical vaccination card but reviews on the app store are pretty bad. Most of the 4* or 5* reviews are simply “works great”. Everything else is 1* reviews saying it is trash.
I used it to get into the Raiders game the weekend of the CCG in Vegas.
Fairly easy set-up. At Allegiant they didn’t scan the barcode, they just had you walk thru the checkpoint with your phone up and displaying the verification screen.
Pre pandemic I flew at least once a month and traveled overseas about three times a year. Tsa Pre (global entry) plus Clear helps you skip almost any security line. I hate the idea that people pay to skip lines but I don’t make the rules and you can do that for $8/month.