No.
They aren't worth it on your phone and they aren't worth it on your dash.
They provide no tangible benefit and there are potential downsides.
Simply not needed.
Tomorrow. Going to ride the 1880 train in the morning, drive the Custer State park wildlife loop, drive the Iron Mountain Road to Mt Rushmore, attend the first Mt Rushmore lighting ceremony of the season. My wife is a veteran, she doesn't know about the lighting ceremony, will be awesome!