Outstanding app!

I spend a lot of time outdoors and in the mountains and this app helps keep me fresh on some of the more lesser used, however still very useful knots.
The ease of use coupled with the very obvious knot diagrams makes it simple to follow.
As the app mentions, make certain to seek professional instruction when your life may hang in the balance of one of these knots.

Jussepie Doo Doo about Knot Guide, v6.0