Comparison

Knot Guide vs Anchor Pro

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

Head to head
About

Knot Guide

Learn to tie a wide variety of essential knots with this comprehensive guide. It provides step-by-step instructions for over 200 knots, making it a valuable resource for DIY enthusiasts, outdoor adventurers, and anyone needing to master knot-tying techniques.

Highlights
  • Extensive knot library (202+ knots)
  • Step-by-step instructions
  • Suitable for various uses
  • Practical DIY resource
  • Easy to follow
Features
Read full description

#1 Knot App on iTunes! Now with 208 knots (and counting)! An App Store Essentials “Weekend Warriors DIY” Pick! “Wow your friends!” – APPLEIPHONEAPPS.com “…a highly recommended app with tons of utility value…” – IPHONEAPPREVIEWS.net “What’s knot to love?” – This Old House “Knot Guide is like a patient teacher showing you again and again until you’ve got it.” – APPCRAVER.com “One of the most practical apps for those not bound by four walls.” – SAN FRANCISCO EXAMINER Need to tie a knot? Knot Guide will teach you the ropes! Now includes 208 knots (176 unique): Adjustable B, Adjustable Lp, Albright, Alpine Butterfly B, Alpine Butterfly on a Bight, Alpine Coil, Anchor B, Angler's Lp, Arbor, Artilleryman's Lp, Ashley B, Ashley’s Stopper, Bachmann H, Back Splice, Backhanded H, Barrel, Barrel H, Becket B, Bedroll, Bell RInger’s, Better Bow, Bimini Twist, Blake’s H, Blood, Boom H, Bottle Sling H, Bowline, Bowline B, Bowline B (Enhanced), Bowline on a Bight, Braid, Bull H, Buntline H, Butcher’s, Camel H, Canadian Jam, Carrick B, Cat’s Paw, Chain Sinnet, Cleat H (Halyard), Cleat H (OXO method), Cleat H with Round Turn, Clinch, Clove H, Clove H on a Bight, Constrictor, Countryman’s, Cow H, Cow H Lock, Daisy Chain, Davy, Diagonal Lashing, Dipping the Eye, Directional Figure Eight, Distel H, Double Alpine Butterfly Lp, Double Davy, Double Dragon Lp, Double English, Double Figure Eight Lp, Double Fisherman’s, Double Fisherman’s Lp, Double Locking Half H, Double Overhand Stopper, Double Sheet B, Double Surgeon’s Lp, Electrician’s, End-of-Rope Prusik, Eskimo Bowline, EStar Stopper, Evenk H, Eye Splice, Farmer’s Lp, Farrimond Friction H, Fender, Figure Eight, Figure Eight Follow Through, Figure Eight Lp, Figure Nine Lp, Fisherman’s, Fisherman’s B, Flat Overhand B, Flemish Flake, Four-in-Hand, Full Windsor, Gasket Coil, Girth H, Gnat H, Grapevine B, Half H, Halter H, Halyard H, Hammock H, Handcuff, Hanson Lp, Harness B, Harness Lp, Heaving Line, Highwayman’s H, Honda, Hunter’s B, Icicle H (End Method), Icicle H (Lp Method), Improved Clinch, Italian H, Johnson H, Jug Sling, Kelleg H, Killick H, Klemheist H, Knute H, Kreh Lp, Lariat, Lark’s Head, Lighterman’s H, Lumberman’s, Manger H, Marlinspike H, Michoacan Climbing H, Midshipman’s H, Miller’s (1), Miller’s (2), Monkey Fist, Mooring H, Mountaineer’s Coil, Multiple Figure Eight, Munter H, Munter Mule Combo H, Nail, Non-Slip Mono Lp, Orvis, Ossel H (complex), Overhand, Overhand Lp, Oysterman’s Stopper, Palomar, Parcel B, Perfection Lp, Pile H, Pipe H, Plank Sling, Plattsburgh, Poacher’s, Portuguese Bowline, Pratt, Prusik H, Quick H, Rapala, Reef, Reever, Rigger’s B, Right Angle, Ring H, Rolling H, Rolling H Zip Tie, Rosendahl B, Rosendahl Lp, Round Lashing, Round Turn and Two Half H, Running, Running Bowline, Sailor’s Gripping H, Sailor’s H, Sailor’s Whipping, San Diego Jam, Shear Lashing, Sheepshank, Sheet B, Sheet B One Way, Siberian H, Simple Simon Under B, Sledge, Slim Beauty, Slip, Span Lp, Spanish Bowline, Spider H, Square, Square Lashing, Stevedore, Surgeon’s, Swing H, Tarbuck, Tautline H, Timber H, Transom, Tripod Lashing, Trucker’s H (1), Trucker’s H (2), True Lover’s, Tucked Sheet B, Tumble H, Turk’s Head 3L5B, Turle, Turtle, Two Half Hitches, Underwriter’s, Uni, Vice Versa B, Violin, B, Water, Water Bowline, Weaver’s, West Country Whipping, Woodland Zip-tie, Yosemite Bowline, Zeppelin B, Zeppelin Lp 20 Categories: Aviation, Bends, Binding, Climbing, Decorative, Fishing, Hitches (End & Middle), Lashings, Loops (Fixed & Slip), Navy SEAL, Necktie, Rope Care, Sailing, Scout, Shortenings, Splices, Stopper, Whippings, Woodland Zip-tie. Since ancient times, people have relied on knots for sailing, climbing, crafting, and countless everyday tasks. Whether novice or experienced, Knot Guide will assist you!

About

Anchor Pro

This app helps boaters set and monitor their anchor position in real-time. It allows for defining safe zones, tracking boat movement, and receiving alerts for critical changes. Remote notifications and Apple Watch integration enhance its utility for secure anchoring.

Highlights
  • Set anchor location in real-time or manually
  • Define custom safe swing zones
  • Monitor boat movement and track history
  • Receive real-time alerts for position, GPS, and battery
  • Remote notifications via Telegram or email
  • Apple Watch companion app for key metrics
Features
Read full description

SET THE ANCHOR Set your anchor location in real time as you drop it, or specify it later by entering distance and bearing. Advanced users can also input exact coordinates. DEFINE THE SAFE ZONE Define the allowed swing area as a simple circle around the anchor, or create a more precise zone by setting two different radii at specific angles. MONITOR MOVEMENT Stay on top of every movement with comprehensive real-time data. Review key metrics on the main screen or switch to the map view to see your boat's track — ideal for analyzing whether your anchor is holding or dragging. GET ALERTED WHEN IT MATTERS Monitor position, GPS signal strength, and battery level — and receive alerts the moment any of these fall outside your set thresholds. REMOTE ALERTS Leave your phone on board and stay informed from shore. Receive alarm notifications via Telegram or email. With Telegram, you can also request a live status update at any time. APPLE WATCH Keep distance, bearing, and battery level on your wrist with the Apple Watch companion app — all updated in real time. TRY ANCHOR PRO FOR FREE Core features are always free. Want to explore everything? All premium features are available during a free trial period — no commitment required. Anchor Pro is ad-supported. Purchasing an Anchor Premium subscription removes ads and unlocks extra features. Payment is charged to your iTunes Account at confirmation. Subscriptions renew automatically at the same price unless auto-renewal is turned off at least 24 hours before the current period ends. You can manage auto-renewal anytime in your Account Settings. Anchor Premium is $6.99 USD/year (pricing may vary by country). Any unused portion of a free trial is forfeited upon purchasing a subscription, where applicable. Terms of use: https://links.ideaboys.net/anchor-ios-terms.html GOOD TO KNOW Anchor Pro uses background audio and location services to keep alerts active when the app is not in the foreground. Please note that continuous GPS use will drain your battery faster than usual.

Screenshots

Knot Guide4 screens
Anchor Pro4 screens

Verdict

The call

The clearest difference is price: Anchor Pro at Free against Knot Guide's $2.99. Anchor Pro also leads on rating (4.8 vs 4.6) and ratings volume (3.5K vs 450). Knot Guide's advantage is update cadence (monthly vs every 2 months). On review sentiment, ads, in-app purchases and monetization model 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

Anchor Pro is free to download; Knot Guide costs $2.99 up front. Knot Guide sells 2 in-app purchases, starting at $2.99 per month and Anchor Pro sells 1 in-app purchase, starting at $6.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Anchor Pro holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Anchor Pro has 3.5K ratings behind it against 450, so its average is the more settled of the two. Written reviews split almost evenly too, at 80% and 79% positive.

UpkeepUpdate frequency

Knot Guide ships an update monthly, Anchor Pro every 2 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard4 real differences · 6 level
Knot Guide versus Anchor Pro: the parameters behind the verdict, then further details
ParameterKnot GuideAnchor Pro
Price$2.99Free — better
Rating4.6 (450 ratings)4.8 (3.5K ratings) — better
Positive reviews79.8% of reviews — better78.9% of reviews
Number of ratings4503.5K — better
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better17.2
Further details — not scored
Size298 MB23 MB
Age rating4+4+
DeveloperWinkpass Creations, Inc.IdeaBoys GmbH

Customer experience

Knot Guide

All ratings450 ratings
Positive90.4%
Neutral2.4%
Negative7.1%
Written reviews510 reviews
Positive79.8%
Neutral9.4%
Negative10.8%

Anchor Pro

All ratings3,496 ratings
Positive96.5%
Neutral1.7%
Negative1.7%
Written reviews175 reviews
Positive78.9%
Neutral2.9%
Negative18.3%

User reviews

Knot Guide

From 450 App Store ratings

What we love

  • 🌟 Great when free
  • 👍 Clear instructions
  • 📚 Comprehensive knot library
  • 🔍 Easy to navigate
  • 🗓️ Regularly updated

Room to improve

  • 💰 Expensive subscription model
  • 🔒 Locking content behind paywall
  • 🤔 Questionable business decisions
  • 🏆 Devaluing previous purchases
  • 🔍 Difficult to find specific knots

Anchor Pro

From 3.5K App Store ratings

What we love

  • 🚀 Reliable anchor alarm
  • 👍 Easy to use interface
  • 🔒 Works without cell/WiFi
  • 💤 Helps user sleep soundly
  • 🗺️ Detailed anchor tracking

Room to improve

  • 🐛 GPS accuracy issues
  • 🔋 Drains device battery
  • 🔍 Remote monitoring unreliable
  • 💰 Subscription required for full features

Bugs and requests

Knot Guide

Reported bugs

2 issues
  • Paywall screen gets stuck
  • Incompatibility with older devices

Requested features

3 requests
  • Add more aviation and climbing knots
  • Provide more details on knot uses and strengths
  • Allow offline access to all content

Anchor Pro

Reported bugs

2 issues
  • App randomly shuts off
  • Anchor position tracking glitches

Requested features

3 requests
  • Customizable anchor icon/color
  • Integration with marine GPS/chartplotter
  • Ability to adjust alarm parameters remotely

In-app purchases

2 purchases

Knot Guide

Subscriptions2
  • Knot Patron$2.991 Month
  • Yearly Knot Patron$31.991 Year
1 purchases

Anchor Pro

Subscriptions1
  • Anchor Premium7 Days trial$6.991 Year

Questions

Is Knot Guide free?
Knot Guide costs $2.99, and also offers in-app purchases.
Is Anchor Pro free?
Anchor Pro is free to download, with in-app purchases available.
Which has better reviews, Knot Guide or Anchor Pro?
Anchor Pro is rated higher. Knot Guide averages 4.6 out of 5 from 450 ratings, while Anchor Pro averages 4.8 from 3.5K ratings.
Do Knot Guide or Anchor Pro have ads?
Neither Knot Guide nor Anchor Pro shows ads.
Which is updated more often, Knot Guide or Anchor Pro?
Knot Guide ships an update monthly, and Anchor Pro every 2 months. Most recently, Knot Guide was updated on September 24, 2026 and Anchor Pro on September 23, 2026.

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