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Android Apps > Books & Reference > Knots 3D
Knots 3D icon

Knots 3D

by Nynix LLC · Books & Reference · $5.99
On Google Play since January 2012 · Data updated 2026-11-06

Knots 3D is made and published by Nynix LLC. AppBrain is an independent app data site and isn't affiliated with Nynix LLC. The app name, icon, screenshots and description belong to Nynix LLC and are shown as published on Google Play.

AppBrain's verdict

EstablishedPopularLoved by usersTop 10
Rating on Google Play
4.93
27,850 ratings
Installs
1.5 million
Last updated
October 25, 2026
Ads
No ads
Size
450.3 MB

Knots 3D is popular, with 1.5 million installs. Users love it: 4.9 stars from 27,850 ratings. Its best ranking is #4 in Top Paid, Books & Reference in Austria.

Official page on Google Play

Pros & Cons

  • Offline, self-contained learning without internet requirements
  • Large knot library (241 knots) across many categories
  • High-quality 3D animations with 360° views and scrubbing controls
  • Ad-free experience with a one-time purchase
  • Specialized topic; narrower audience compared with general reference apps

User feedback

Ratings and reviews on Google Play

Comments on Knots 3D for Android

★★★★★ Ethan Hunter · Oct 28, 2026
A perfect app for learning knots. It gives extremely clear description of the knots and very slow animations on how to tie them.
★★★★★ Brandon Kennedy · Jul 5, 2026
Super useful collection of knots, organized in a way that makes sense. well-designed app with good features, such as enlarging the knot and being able to slowly go backwards and forward through the knot process
★★★★★ Ben · May 8, 2026
Been using this app for many years. The animations help a lot when you're trying to understand the more complex knots.
★☆☆☆☆ Glenn McNeill · May 2, 2026
This used to be a great app, but now it's been infected by gen Slop "A.I.", which is actually just "Atrophied Intelligence", "Actually Idiotic", "Artificial Idiocy", "Advanced Incompetence". Take your pick; It's all brain-rot.
★☆☆☆☆ Robert Meegan · Apr 28, 2026
This was a 5-star, must-have app that's been ruined by the stupid addition of an LLM that inflates the size while providing no value at all. A simple list of suggested knots would do everything that the LLM is supposed to do without the need to figure out how to frame the question. If there's anyone so hopeless that they can't find a knot with a decent table of contents, they're probably going to screw up tying the knot anyway.

Google Play Rating history and histogram

26K
1.3K
120
0
120

Store listing

By Nynix LLC, from Google Play

“Learn to tie over 240 knots in 3D!”

Knots 3D Screenshot 1 of 9
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Screenshots by Nynix LLC, from the Google Play listing
Description by Nynix LLC Written by the developer, not by AppBrain. Click to read.
Used by arborists, anglers, firefighters, climbers, sailors, the military and scouts the world over, Knots 3D will quickly teach you how to tie even the most difficult knot!

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.

Accolades:
- Google Play Editors' Choice
- Winner of Google Play Best of 2017, Hidden Gem category
- Included in Scouting Magazine's "Best Scouting Apps of 2016"

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.

Permissions:
No internet or other special permissions required.

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

7-Day Refund Policy:
Try Knots 3D risk free for a week. For a refund, send the order number from your Google receipt to our support email address.

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.

Recent changes:
- Improved animations for nine knots
- Further search algorithm refinements
- Minor content updates
- Fixed update and install issue
Official page on Google Play

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
$5.99
Libraries
13
App size
450.3 MB
Needs Android
12.1+
Content rating
Everyone

Technologies used by Knots 3D

3 permissions · 13 libraries
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
11.9.1
Launched
January 2012
  • Oct 25, 2026UpdateVersion 11.9.1
  • Oct 10, 2026UpdateVersion 11.8.1
  • Oct 4, 2026UpdateVersion 11.8.0
  • Sep 27, 2026UpdateVersion 11.7.0
  • Sep 19, 2026UpdateVersion 11.6.0
Show all changes Show fewer

Alternatives

Similar apps and more from Nynix LLC

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More from Nynix LLC

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Installs

Tracked by AppBrain
Last 30 days
3.1 thousand
Per day
100
30-day average
Play install range
1+ million
Launched
January 2012

Installs over time

Knots 3D has been installed 1.5 million times. Over the past 30 days, it averaged 100 installs per day.

Rankings

Google Play top charts
Highest rank
#4
Chart
Top Paid
Books & Reference
Country
Austria

Google Play Rankings for Knots 3D

Top rankings

Rank Country Category List
4 Austria Books & Reference Top Paid
4 Belgium Books & Reference Top Paid
4 Switzerland Books & Reference Top Paid
4 Czech Republic Books & Reference Top Paid
4 Denmark Books & Reference Top Paid
4 Finland Books & Reference Top Paid
4 Indonesia Books & Reference Top Paid
4 India Books & Reference Top Paid
4 Mexico Books & Reference Top Paid
4 Netherlands Books & Reference Top Paid
Show all market rankings

Ranking history in Austria

About the app and developer

About Knots 3D

Knots 3D is a books & reference app developed by Nynix LLC.

How many times has Knots 3D been installed?

Knots 3D has been installed 1.5 million times. In the last 30 days, the app was installed 3.1 thousand times. It is ranked #4 in books & reference.

What is the rating of Knots 3D?

Knots 3D is rated 4.93 out of 5 stars, based on 28 thousand ratings.

Is Knots 3D free?

Knots 3D costs $5.99. The app size is 450.31 MB. The latest version available is 11.9.1. The last update was on October 25, 2026.

What are the requirements for Knots 3D?

Knots 3D requires Android 12.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since January 2012.

App Performance Report

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Get PDF Report — $29

Developer information for Nynix LLC

Nynix LLC

app_support@nynix.com

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Frequently asked questions about Knots 3D

Is Knots 3D free?

No. Knots 3D costs $5.99 on Google Play.

Is Knots 3D still available?

Yes. Knots 3D is on Google Play, and the last update we saw was on October 25, 2026.

Does Knots 3D contain ads?

No. Google Play does not list Knots 3D as containing ads.

What Android version does Knots 3D require?

Knots 3D runs on Android 12.1 and higher.

How large is Knots 3D?

Knots 3D is 450.31 MB.

Is Knots 3D suitable for children?

Google Play rates the content of Knots 3D as suitable for everyone.

How many times has Knots 3D been installed?

Google Play lists 1,000,000+ installs for Knots 3D.

How do people rate Knots 3D?

Knots 3D scores 4.93 out of 5 stars, from 27,850 ratings on Google Play.

Who made Knots 3D?

Knots 3D was developed by Nynix LLC. It is listed in the books & reference category on Google Play.

What are the best alternatives to Knots 3D?

People looking at Knots 3D also look at these books & reference apps: Knots Tying Guide: KnotSmith, Knot IQ: 3D Knot Tying, Net Knots, Tying 3D Animated Useful Knots, Knots 360 Pro ( 3D ).

Share Knots 3D

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Knots Tying Guide: KnotSmith icon Knots Tying Guide: KnotSmith
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Net Knots icon Net Knots
Tying 3D Animated Useful Knots icon Tying 3D Animated Useful Knots
Knots 360 Pro ( 3D ) icon Knots 360 Pro ( 3D )
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Overview Alternatives History Reviews Rankings Technology
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