Great in theory, but has some flaws.
Very convenient since I never seem to remember my hard copy passport. However, the gps is very restricting, and makers mark doesnt have cell service. I have no idea how to get that stamp. If they would make it so you could check in other ways, such as scanning a bar code from a ticket after you enter an area with service it would work better.
Jo_musick about
Kentucky Bourbon Trail® App