The app is absolutely dependent upon a cell service and the very basic concept of remote start while in a remote location seems to have escaped the developers' minds. You have made a very complicated key fob that is less reliable. I travel often with my pets and I can not leave them in a car that I can not run remotely, especially in bad weather. Old car started with a single push of a button, now it is four screens, a password, a pass code, and a relay delay before I know if the signal was even received. Ever cross your minds to pass a digital secure token over the cell path and keep it live for blue tooth activation of the ignition, with reload when the phone is active in the car? And stop turning on my flashers to start the car. I do not want to advertise my car's location. Then let the app access the proximity sensors, or backup cam so you can see if someone is near it. So much potential, but too complex to be used very often. Appended: Why does it ask if the vehicle is inside when remote starting? It can sense walls if you access the proximity sensors and backup cam. Update: The most recent update makes the most common function, remote start, even hard to use. This Ap is less useful than a remote start key fob.