It wasnt a real advantage

I downloaded the app and entered my data. There was no line at the airport, but for some reason the officer couldnt process the people in front of me. Folks using regular passports flew past us. When I got to the front of the line the officer asked for my passport booklet anyway. In fact, even though they kept scanning my app, I was consistently asked for my passport booklet so all it did as make it take longer. Global Entry would have been faster and easier. This was a waste of time.

Fairleigh Saine about Mobile Passport by Airside, v1.1.0