This interactive 3D knots app teaches you how to tie the most common sailing knots. The app allows you to play, pause and stop the animation to make it easy to follow along. You can also rotate, tilt, pan and zoom to view the knots from different angles.

For each knot, there's also a step-by-step description on how to tie the knot. Furthermore, in the description of each knot you find the most common usage and misusage in sailing, information on the structure and reliability of the knot and interesting history facts.

The knots available in this app are:
- Clove Hitch
- Round turn & two half hitches
- Reef knot
- Bowline
- Sheet bend
- Double sheet bend
- Figure eight knot
- Rolling hitch

This app will help you to understand the structure of the knots, when to use them and what their strengths and weaknesses are. It is ideal for new boaters and sailers who want to know the important basics of sailing knots.