grab app function
My grab app will only work if connected to Wi-Fi while my wife’s app works on cellular. Why is there a difference!
iPhone 13 Pro, iOS 16
Assuming your cellular data plan is okay, assuming you enabled cellular data access for Grab app in Settings>Cellular, I have no idea about that glitch.
If the issue persists, I'd try to contact Grab developer/support team and ask them:--> https://help.grab.com/passenger/en-sg/
Regards
Giulio