DRFT MRKS vs Maritime Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- AI/Deep Learning technology
- Measures vessel draft from video
- Improves draft reading accuracy
- Verifiable source of truth
- Calculates vessel displacement
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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.
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | DRFT MRKS | Maritime Master |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Monthly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 60 MB | 30 MB |
| Age rating | 4+ | 12+ |
| Developer | Tymor Marine Ltd | MARITIME MASTER LIMITED |
In-app purchases
DRFT MRKS
No in-app purchases
Maritime Master
No in-app purchases
Questions
Is DRFT MRKS free?
Is Maritime Master free?
Which has better reviews, DRFT MRKS or Maritime Master?
Do DRFT MRKS or Maritime Master have ads?
Which is updated more often, DRFT MRKS or Maritime Master?
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