5 stars
This app was wonderful. It saved us from going off trail multiple times. I strongly recommend this to anybody hiking the TMB. We had a guide book which was helpful in other ways but this app was what we referred to the most. The one time we did not refer to it, when there was a question of which way to go, we ended up hiking over a mile up a very steep hill. Needless to say, we learned from our mistake and consulted the app when we had any misgivings. 5 stars!! Can’t recommend enough.