Great info thanks Joe.
You mentioned in past in Google Maps to to make sure app off, when done or not using; but I don't think anything will count against you if the app is on, BUT , have not yet clicked start yet or exited the search.
If you are moving and Google Maps or Apple Map is open in either foreground or background you will be using GPS and cellular. Cellular is used to refine your location and improve accuracy. Don't ask me to explain how that works, as I have no idea.
