Knots 3D allows you to tie, untie and rotate 90+ knots with your finger in 3D! This top-rated app will give you a whole new perspective on knots! Grab a piece of rope and have fun! #1 Knot Reference in 75 Countries. Included in Scouting Magazine's "Ultimate List of Scouting Apps" and featured in the Trek Tech section of the Sep/Oct 2012 issue.
