ASTM 54 B vs DRFT MRKS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ASTM 54 B
This application calculates fuel weight for ships based on ASTM 54 B standards. Users input volume and observed temperature to receive precise calculations.
- ASTM 54 B fuel weight calculation
- Input volume and temperature
- Automatic calculation
- User-friendly interface
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SHIPS BUNKERING CALCULATION OF FUEL WEIGHT ACCORDING ASTM 54 B . ENTER TO APPLICATION VOLUME AND OBSERVED TEMPERATURE AND PROGRAM WILL CALCULATE EVERYTHING FOR YOU.
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.
Screenshots
Verdict
The clearest difference is price: DRFT MRKS at Free against ASTM 54 B's $9.99. DRFT MRKS also leads on update cadence (monthly vs every 6 months). On ads, in-app purchases, device support and iOS requirement 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; ASTM 54 B costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ASTM 54 B ships an update every 6 months, DRFT MRKS monthly. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.
| Parameter | ASTM 54 B | DRFT MRKS |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleksii Nezhalskyi | Tymor Marine Ltd |
Customer experience
ASTM 54 B
DRFT MRKS
In-app purchases
ASTM 54 B
No in-app purchases
DRFT MRKS
No in-app purchases
