Poor, mostly
Its misleading. You get a handful of knots, and the rest you have to download without having any idea what theyre for. There are ads on every page. The app doesnt tell you what the knot is typically used for. A disappointment over all. The only good element is the animation showing how to tie the handful of knots included in this otherwise mediocre waste of money.
Spotdoctor about
Animated 3D Knots