Used by arborists, fishermen, firefighters, climbers, military and boy and girl scouts the world over, Knots 3D will quickly teach you how to tie even the most difficult knot! Accolades •  Google Play Editors' Choice designation •  Winner of Google Play Best of 2017, Hidden Gem category. •  Included in Scouting Magazine's "Best Scouting Apps of 2016" With more than 175 knots, Knots 3D will be your go-to reference! Grab some rope and have fun! Permissions: NO INTERNET OR OTHER PERMISSIONS REQUIRED! Completely self contained. Product Features and Functions: •  177 unique knots with new ones added frequently. •  Browse by category or search by name, common synonym or ABOK #. •  Landscape and portrait modes and full screen (zoom in to see greater detail). •  Watch knots tie themselves and pause or adjust the speed of the animation at any time . •  Rotate knots in 360 degree, 3D views to study them from any angle. •  Interact with the knot on screen by "scrubbing" your finger over the knot to advance or rewind the animation. •  Dark mode / Light Mode •  No advertisements. No in-app purchases. No subscriptions. Ever! 7 Day Refund Policy Try Knots 3D risk free for a week. If you would like to request a refund, send the order number found in the receipt Google emails you at the time of purchase to our support email address. Languages: English, Arabic, Chinese, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish and Turkish! The entire list of knots can be found here: http://knots3d.com/