Maritime Master Knots, forty two knots in 3D
- Reece Smith-ward
- Aug 3
- 3 min read
Learning a knot from a flat diagram can be a frustrating business. You follow the lines, lose track of which strand goes over which, and end up unpicking the whole thing to start again. Maritime Master Knots takes a different approach. Every knot is rendered as animated real-time 3D rope that you can rotate, zoom, and scrub through at your own pace, from the first loose turn all the way to the finished knot.
It is a study and revision app for iPhone and iPad, available as a one-time purchase in the Utilities category. Below is a closer look at what is inside and how it is designed to help you learn.
Learn knots in 3D
The heart of the app is its real-time 3D rope. Rather than watching a fixed video or squinting at a still photo, you control the view. Spin the knot around to see how the strands sit behind one another, zoom in on a tricky crossing, and scrub the animation forwards and backwards to watch the shape form and come apart. Numbered step by step instructions sit alongside the animation, so you can match each written stage to what the rope is actually doing.
Forty two essential knots
The library covers forty two essential knots, organised so you can find what you need. It spans fourteen hitches, thirteen loops, five bends, four stoppers, and a set of utility and decorative knots. Named examples include the bowline, clove hitch, sheet bend, figure of eight, round turn and two half hitches, rolling hitch, prusik, alpine butterfly, and the monkey's fist.
Because the knots are grouped by type, it is easy to compare related knots and understand why one might suit a job better than another. If you already know what you are looking for, you can search by name, by category, or by Ashley number to jump straight to it.
Real reference for every knot
Each knot comes with genuine reference detail rather than just a picture. You get its uses at sea, safety warnings specific to that knot, and strength and difficulty ratings so you know what you are taking on. There is a note on its history, memory aids to help the steps stick, and its reference number from the Ashley Book of Knots for anyone who wants to cross-reference the standard work.
Built for study
The app is designed to fit around how people actually revise. You can mark favourites to build your own shortlist of the knots you most want to practise, and everything works offline, so a patchy signal is no obstacle. There is no account to create and no tracking. If you prefer to study in another language, the app is localised into Spanish, French, German, Japanese, Chinese, and Portuguese.
A serious safety note
Knots are safety equipment. Practise with real rope in a controlled setting, inspect your line before use, and never rely on any app alone where a knot bears load or protects life. For climbing, rescue, and working at height, always get qualified in-person instruction. This app is a learning and revision aid to help you understand and study knots, and it is not a substitute for hands-on training or professional guidance.
Who it suits
Maritime Master Knots is a good companion for anyone building their knowledge of knots, from sailing students revising for theory to hobbyists who simply want their bends and hitches to become second nature. Take it at your own pace, return to your favourites as often as you like, and let the 3D rope do the explaining that a diagram never quite manages.
