Garmin DEZL truckers GPS. The best and safest method. You can program in your night, weight and any hazards. Your app, if there was one would have to rely on a cellular signal. What if you did not have one? A GPS relies on satellites.
It gives you a ton of warnings ahead like speed limit changes,sharp curves, grades, lane assist and construction notifications.
Not to mention the thousands and thousands of points of interest including campgrounds. In 6 years it has not gotten me in any trouble.