[Android] Free: Knots 3D @ Google Play

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. With more than 130 knots, Knots 3D will be your go-to reference! Grab some rope and have fun!

Accolades
•  Winner of Google Play Best of 2017, Hidden Gem category.
•  Google Play Editors' Choice designation
•  Included in Scouting Magazine's "Best Scouting Apps of 2016"
•  Featured as a top outdoor and boating app by: GQ Magazine, Boating Magazine, Outside Magazine, Cruising World, and Sailing Magazine among others.

via dealbot at OzBargain