Comparison

Digi vs Knot Tying Guide

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

Head to head
About

Digi

This app enables remote wireless Bluetooth connectivity to precision digital leveling devices. It allows for simultaneous 2-axis leveling, angle measurement, and 2D alignment, facilitating efficient one-person operation for machine installation.

Highlights
  • Remote wireless Bluetooth connectivity
  • 2-Axis simultaneous leveling
  • Angle measurement
  • 2D concurrent alignment
  • One-man operation
  • Compatible with specific Digi-Pas devices
Features
Read full description

Digi-Pas® Mobile App is a user-friendly app, easily installed in any compatible smartphones or tablets. Users can fully utilize the remote wireless Bluetooth mobile connectivity to various Digi-Pas® 2-axis precision digital levelling devices. This highly affordable app instantly empowers machine installers to perform remote 2-Axis simultaneous levelling task, angle measurement and 2D concurrent alignment activities with speed, precision and as a 'one-man-operation' that traditional single-axis digital or 'bubble' levels are unable to match. Compatible devices: -DWL8500XY 2-Axis Ultra Precision Digital Inclinometer Bluetooth Device (With Firmware version 3.4 and above!) -DWL3500XY 2-Axis High Precision Digital Machinist Level Bluetooth Device (With Firmware version 4.0 and above!) -DWL3000XY 2-Axis High Precision Digital Machinist Level Bluetooth Device (With Firmware version 4.0 and above!)

About

Knot Tying Guide

Learn essential knots with animated, step-by-step instructions. Explore a comprehensive library of knots categorized by use and strength, with practice modes to master them. All content is available offline and stored locally on your device.

Highlights
  • Animated knot tying walkthroughs
  • Step-by-step instructions
  • Knot library categorized by use
  • Hold-strength ratings
  • Timed practice sessions
  • Progress tracking
  • Offline functionality
Features
Read full description

Learn the knots that actually matter. Knot breaks each one into numbered steps and animates the tying motion, so you can watch the rope move, slow it down, run it backwards, and repeat until your hands remember. THE LIBRARY Bowline, clove hitch, sheet bend, square knot, figure-8, taut-line hitch, fisherman's knot, trucker's hitch, two half-hitches, prusik, alpine butterfly and slipknot, grouped by what they do: loops, hitches, bends, stoppers and bindings. ANIMATED WALKTHROUGH Play the tying motion at slow, normal or fast speed, reverse it to see how the knot comes apart, or step forward and back one move at a time. Every step carries a short, plain instruction, with no jargon and no guesswork about which end goes where. BUILT FOR THE JOB Each entry lists the real situations the knot is made for: sailing, rescue, climbing anchors, tent guy lines, tensioning tarps, joining fishing line, starting lashings, first aid. Each one also shows an approximate hold-strength rating, so you can pick a knot that matches the load instead of guessing. FIND IT FAST Search by knot name or by use case. Filter by family or by difficulty, and sort by name, difficulty or hold strength. Save the ones you rely on to Favorites so they are a single tap away on the boat, at the crag, or in the dark. PRACTICE AND PROGRESS Start a timed practice session, log every attempt, and mark a knot mastered once you can tie it without looking. The Progress tab shows how much of the library you have mastered and breaks it down by category, so you can see which family you keep avoiding. Switch on the daily drill for a reminder at a time you choose, and the knots you rarely use stop going stale. YOURS ALONE Everything stays on your device. No account, no sign-in, nothing to restore from a server, and every walkthrough works with no signal: on the water, on the wall, or deep in the woods. UNLOCK Knot Tying Guide: Rope Knots requires a Pro unlock to tie. Pro opens the complete app: the full library of loops, hitches, bends, stoppers and bindings, every animated tying walkthrough with slow, normal and fast speed, reverse and single-step controls, the use-case and hold-strength details on each knot, search, family and difficulty filters and sorting, Favorites, timed practice sessions with a logged attempt history, the Progress tab with per-category mastery, and the daily drill reminder. Plans: a weekly subscription, a yearly subscription, or a one-time lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours prior to the end of the current period. You can manage your subscription and turn off auto-renewal in your Account Settings after purchase. Privacy policy: https://pnkl26.web.app/privacy-policy Terms of use: https://pnkl26.web.app/terms-of-service

Screenshots

Digi2 screens
Knot Tying Guide4 screens

Verdict

The call

The clearest difference is rating: Digi at 3.0 against Knot Tying Guide's 1.0. Digi also leads on update cadence (every 4 weeks vs every 6 months) and monetization model (free vs free with in-app purchases). On price, ratings volume, ads and in-app purchases 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

Both are free to download. Digi sells 1 one-off in-app purchase and Knot Tying Guide sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Digi holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Digi ships an update every 4 weeks, Knot Tying Guide every 6 months. The most recent releases landed on November 2, 2026 and November 13, 2026 respectively.

Scorecard5 real differences · 5 level
Digi versus Knot Tying Guide: the parameters behind the verdict, then further details
ParameterDigiKnot Tying Guide
PriceFreeFree
Rating3.0 (2 ratings) — better1.0 (1 ratings)
Positive reviews80.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 4 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.2 — better17.0
Further details — not scored
Size325 MB5 MB
Age rating4+4+
DeveloperJSB TechLinh Phan Nhat Khanh

Customer experience

Digi

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Knot Tying Guide

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Digi

One-time1
  • Full Features$24.99
3 purchases

Knot Tying Guide

Subscriptions2
  • Camping & Hammock Hitches$2.997 Days
  • Bowline Step Animations$14.991 Year
One-time1
  • Scout & Boating Drills$29.99

Questions

Is Digi free?
Digi is free to download, with in-app purchases available.
Is Knot Tying Guide free?
Knot Tying Guide is free to download, with in-app purchases available.
Which has better reviews, Digi or Knot Tying Guide?
Digi is rated higher. Digi averages 3.0 out of 5 from 2 ratings, while Knot Tying Guide averages 1.0 from 1 ratings.
Do Digi or Knot Tying Guide have ads?
Neither Digi nor Knot Tying Guide shows ads.
Which is updated more often, Digi or Knot Tying Guide?
Digi ships an update every 4 weeks, and Knot Tying Guide every 6 months. Most recently, Digi was updated on November 2, 2026 and Knot Tying Guide on November 13, 2026.

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