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Knots 3D

by Nynix

  • Reference
  • Paid
View on the App Store
Rating
4.9
12.9K ratings · US storefront
Top 35%among 104 Reference apps
Last update
Oct 10, 2026
Version 11.8.1
Size
545 MB
Category
Reference
Tracked since
Oct 9, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

Learn to tie over 240 knots for fishing, climbing, boating, sailing, camping, scouting and other ropework.

Knots 3D is the original 3D knot-tying app, first released in 2011 and rated 4.9 by tens of thousands of users worldwide. Choose a knot app with care, as your safety may depend on it.

Watch each knot tie itself in 3D, slow it down, and turn it around until it makes sense. Browse by category or type, search by name, common synonym or Ashley Book of Knots (ABoK) number, or describe what you need the knot to do. Save your favorite knots for quick review.

Features:

  • 241 knots in over a dozen categories, with new knots added regularly
  • No ads, no subscriptions and no in-app purchases. Ever!
  • Completely OFFLINE and self-contained. No additional downloads or internet access required!
  • 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 with a swipe of a finger
  • "Scrub" over the knot with a finger to advance or rewind the animation
  • Mirror (left-hand) mode, zoom, and rotate the view to match how you hold the rope
  • Describe a task in your own words, like "tie a boat to a dock", to find the right knots for the job
  • High-res graphics with photorealistic rope textures
  • Dark mode and light mode
  • List, Card and Icon view options
  • Create your own custom categories to group knots, such as "Mastered", "Practice" or "Top Ten"
  • Add personal notes, links and your own search keywords to any knot
  • Share a knot link by text message, email, social media and more
  • ABoK numbers for cross-reference to The Ashley Book of Knots

Includes the knots people look for most: Bowline, Clove Hitch, Figure Eight, Trucker's Hitch, Square Knot, Sheet Bend, Prusik, Taut Line Hitch, Cleat Hitch, Palomar Knot, Uni Knot, Double Fisherman's Knot, Alpine Butterfly, Monkey's Fist, Munter Hitch and many more.

Every knot comes with a description of what it is for and a list of common uses. Most also include the other names the knot goes by, strength and reliability notes, structure, related knots, ABoK numbers and history.

Available in 25 languages:
Arabic, Chinese (Simplified), Chinese (Traditional), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian and Vietnamese

Categories:

  • Essential Knots
  • Arborist
  • Boating
  • Camping
  • Caving
  • Climbing
  • Decorative
  • Diving
  • Fire & Rescue
  • Fishing
  • Military
  • Neckties
  • Pioneering
  • Rope Care
  • Scouting
  • Theatre & Film

Types:

  • Bends
  • Binding
  • Coils
  • Friction Hitches
  • Hitches
  • Lashings
  • Loops
  • Mats
  • Multi-Loop
  • Quick Release
  • Stoppers
  • Whippings

The complete list of knots:

https://knots3d.com/en/complete-list

Missing a knot? Suggest one from inside the app.

Knots 3D is a learning reference. Learn from a skilled instructor if you plan to use ropes or knots in a situation where failure could cause property damage, injury, or death.

What’s new

Release notes for the latest version, as written by the developer.

v11.8.1

v11.8.1

  • Improved search results

v11.8.0

  • 5 new knots (246 total)
  • Updated knot names, synonyms, descriptions and histories
  • Improved search
  • Fixed a crash at launch on some devices
  • Fixed a bug with the disable timeout setting
  • Fixed and updated the Snell Knot animation

Rank history

Daily position in the Denmark charts. #1 is at the top.

Best rank
#2
Current rank
#2
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

70/100

Not flagged as small & simple

  • Developer size100% · 25

    Developer: 1 app on the charts

  • Audience size0% · 20

    Ratings: 12,902

  • App size0% · 10

    Size: 545 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #1, 119 countries

An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2

How the score works

Version history

  • 11.8.1LatestReleased Oct 10, 2026
  • 11.8.0Released Oct 5, 2026