I dont understand why is everyone giving this app 5 stars - probably because these reviews are written by people who never walked the trails this app is listing.
Lets take a look at Long Pond Greenbelt Trail:
First of all the app is sending you through nonexisting streets and private properties. Pond rd. doesnt exist and most of Sprig Tree Path is demapped 30 years ago. When you press direction button it redirects you to Google maps pointing to head of the trail which is actually somebodys house. Trail map for most parts has nothing to do with reality. Google maps has a perfect data of public trails... Dont bother with Alltrails - it will get you in trouble for trespassing on private land
Akm74 about AllTrails: Hike, Bike & Run