I receive a message that says "App not trusted." What's wrong?
This is a security feature on iPhones , so do not panic! Here’s what you can do:
Scroll down and tap “Device Management”
Select “Grubhub, Inc”
Tap “Trust Grubhub, Inc”
If you still experience issues accessing the Grubhub for Drivers app, please email firstname.lastname@example.org