Comparison

Knots 3D vs Armoury

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Knots 3D

Master over 220 essential knots with detailed 3D animations and offline access. This app is perfect for learning rope work for activities like fishing, climbing, and boating, offering interactive tutorials and customizable organization features.

Highlights
  • 225+ knots in 12+ categories
  • Offline access, no internet required
  • Interactive 3D knot animations
  • Rotate and scrub through knot tying
  • Customizable knot categories
  • Add personal notes and keywords
  • ABOK number cross-reference
Features
Read full description

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.

About

Armoury

This app provides comprehensive information on weapon systems used by the British Armed Forces. It includes detailed diagrams, technical data, and training drills to enhance weapon knowledge and proficiency. New content is added monthly.

Highlights
  • Weapon system information
  • Detailed diagrams
  • Technical data sheets
  • Weapon drills
  • Customizable themes
  • Monthly content updates
Features
Read full description

The Armoury, by Watch&Shoot UK, is designed to improve your weapon knowledge and proficiency. This resource places information about weapons used by the British Armed Forces in one handy format, giving you a wealth of skill at arms knowledge at your finger tips. The Armoury contains the following weapon systems: The Glock-17, BSA Scorpion, Cadet Small Bore, SA80, Cadet SA80, Sharpshooter, Cadet Target Rifle, GPMG, Combat Shotgun, ASM & NLAW. New weapons added monthly. Weapon ranges. Detailed 'Name parts' diagrams. Sighting systems. Detailed images and technical data sheets. Weapon drills. “Buddy buddy” weapon drill fault checking. Three customisable themes. Watch&Shoot are a new and progressive development company that regularly updates their apps based on customer suggestions. Follow our social media for more information: facebook.com/watchandshootuk & instagram.com/watchandshotuk

Screenshots

Knots 3D4 screens
Armoury4 screens

Verdict

The call

The clearest difference is review sentiment: Knots 3D at 98% against Armoury's 0%. Knots 3D also leads on chart position (#3 vs unranked). Armoury's advantage is price ($1.99 vs $5.99) and iOS requirement (8.0 vs 16.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Knots 3D costs $5.99 and Armoury $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Knots 3D ships an update every 2 weeks, Armoury every 8 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 6 level
Knots 3D versus Armoury: the parameters behind the verdict, then further details
ParameterKnots 3DArmoury
Price$5.99$1.99 — better
Rating4.9 (13K ratings) — better—
Positive reviews97.8% of reviews — better0.0% of reviews
Number of ratings13K — better—
Update frequencyEvery 2 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#3 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.08.0 — better
Further details — not scored
Size523 MB38 MB
Age rating4+12+
DeveloperNynixWatch and Shoot Developments LTD

Customer experience

Knots 3D

All ratings12,943 ratings
Positive98.3%
Neutral0.9%
Negative0.8%
Written reviews636 reviews
Positive97.8%
Neutral0.9%
Negative1.3%

Armoury

Written reviews5 reviews
Positive0.0%
Neutral40.0%
Negative60.0%

Bugs and requests

Knots 3D

Reported bugs

1 issue
  • Favorites list disappearing after updates

Requested features

4 requests
  • Add more splices and advanced knots
  • Implement step-by-step instructions and ability to pause/rewind animations
  • Add a continuous loop option for the knot animations
  • Introduce a game mode or practice feature

Armoury

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Knots 3D

No in-app purchases

None

Armoury

No in-app purchases

Questions

Is Knots 3D free?
Knots 3D costs $5.99, with no in-app purchases.
Is Armoury free?
Armoury costs $1.99, with no in-app purchases.
Do Knots 3D or Armoury have ads?
Neither Knots 3D nor Armoury shows ads.
Which is updated more often, Knots 3D or Armoury?
Knots 3D ships an update every 2 weeks, and Armoury every 8 days. Most recently, Knots 3D was updated on November 1, 2026 and Armoury on October 30, 2026.

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