Comparison

DRFT MRKS vs Maritime Master

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

Head to head
About

DRFT MRKS

This application uses AI and deep learning to accurately measure a vessel's draft from a short HD video. It aims to provide a verifiable source of truth for calculating vessel displacement, improving accuracy in determining loaded cargo and equipment.

Highlights
  • AI/Deep Learning technology
  • Measures vessel draft from video
  • Improves draft reading accuracy
  • Verifiable source of truth
  • Calculates vessel displacement
Features
Read full description

Tymor Marine's breakthrough DRFT MRKS technology measures a vessel's draft from a 30-second, 1080p HD video. It is an industry-leading AI/Deep Learning technology developed to improve the traditional draft reading process. DRFT MRKS aims to allow anyone to read draft marks with the same skill and accuracy as an experienced mariner. Discrepancies can lead to incorrect displacement measurements, spark disputes over cargo quantities, and impose operational limitations on vessels. DRFT MRKS provides a single verifiable source of truth when calculating vessel displacement using draft marks, helping to improve accuracy when determining loaded cargo/equipment.

About

Maritime Master

Learn and master 42 essential rope knots with interactive 3D animations. This app provides step-by-step instructions, usage details, and difficulty ratings for practical rope work.

Highlights
  • Interactive 3D knot viewer
  • Step-by-step tying instructions
  • Rich knot data (usage, history, strength)
  • Difficulty ratings for each knot
  • Search and filter functionality
  • Favorites list for quick access
Features
Read full description

Master 42 essential rope knots with interactive 3D animations, designed for sailors, climbers, anglers, and outdoor enthusiasts alike. Maritime Master - Knots brings rope craft to life with a 42-knot library rendered in real-time 3D. Watch each knot form step by step, rotate from every angle, and build genuine understanding before you pick up real rope. Includes loops, hitches, bends, stoppers, utility knots, and decorative knots, with the current catalog centred on practical rope work for study and revision. nteractive 3D Viewer Rotate, zoom, and pan each knot in real-time 3D. Scrub through the full tying sequence from loose rope to finished knot, then watch it tighten into its final dressed form. Step-by-Step Instructions Numbered tying steps for every knot so you always know exactly what to do at each stage. Rich Knot Data Usage notes, history, strength information, safety warnings, memory mnemonics, and COLREGs relevance where applicable. Ashley Book of Knots reference numbers are included where available. Difficulty Ratings Every knot rated 1–5 so you can start simple and advance at your own pace. Favourites Pin any knot to the top of your library for fast access on deck, at the crag, or by the water. Search & Filter Browse by category or search by name, Ashley number, or description. Whether you're studying for a maritime qualification, brushing up your seamanship, learning rope craft for climbing or camping, or just want to tie better knots, Maritime Master - Knots is your always-available pocket reference. For study and revision only. Not for use in safety-critical or operational situations. Always use official publications and certified equipment at sea.

Screenshots

DRFT MRKS4 screens
Maritime Master4 screens

Verdict

The call

The clearest difference is price: DRFT MRKS at Free against Maritime Master's $3.99. DRFT MRKS also leads on rating (5.0 vs 1.0). Maritime Master's advantage is update cadence (every 2 days vs monthly). On ratings volume, 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

DRFT MRKS is free to download; Maritime Master costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

DRFT MRKS holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

DRFT MRKS ships an update monthly, Maritime Master every 2 days. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 5 level
DRFT MRKS versus Maritime Master: the parameters behind the verdict, then further details
ParameterDRFT MRKSMaritime Master
PriceFree — better$3.99
Rating5.0 (1 ratings) — better1.0 (1 ratings)
Number of ratings11
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhoneiPhone, iPad — better
Requires iOS18.0 — better18.6
Further details — not scored
Size60 MB30 MB
Age rating4+12+
DeveloperTymor Marine LtdMARITIME MASTER LIMITED

In-app purchases

None

DRFT MRKS

No in-app purchases

None

Maritime Master

No in-app purchases

Questions

Is DRFT MRKS free?
DRFT MRKS is free to download, with no in-app purchases.
Is Maritime Master free?
Maritime Master costs $3.99, with no in-app purchases.
Which has better reviews, DRFT MRKS or Maritime Master?
DRFT MRKS is rated higher. DRFT MRKS averages 5.0 out of 5 from 1 ratings, while Maritime Master averages 1.0 from 1 ratings.
Do DRFT MRKS or Maritime Master have ads?
Neither DRFT MRKS nor Maritime Master shows ads.
Which is updated more often, DRFT MRKS or Maritime Master?
DRFT MRKS ships an update monthly, and Maritime Master every 2 days. Most recently, DRFT MRKS was updated on November 4, 2026 and Maritime Master on November 9, 2026.

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