Not bad
Would have given the app a five but 2 things are wrong. 1. I found that the tying of the not was too quick to watch and should have moved slower. 2nd, there is no description as to what the knot is used for or why, and this would have been nice information to know. Especially when trying to choose a knot. Otherwise a very nice application
Littlethingsmatter about
Animated Knots by Grog