This app needs your location to function. I do not aloud apps that "always" can track my location even when Im not using it. There is no reason why this app should only work when it has access to your location. A list of border crossing to select from should be good enough. If they track peoples movement while they cross the border to get actual times, just like Wize does on the road, then they only need your location when the app is in use, not always.