I might be misreading your wording, but to my knowledge, the Mobile Passport app can be used independently and as a substitute for Global Entry if someone doesn't have Global Entry. At least it worked for me that way on various trips before I decided to go ahead and get Global Entry (just because). I haven't checked to see if that has changed though.Thanks. I have that app - it’s very useful. Still need to renew Global Entry. App works in conjunction with GE. I’m a United 2M and now have $18k of credit thanks to Covid. No idea when I will be able to use it.