Im On Board vs DRFT MRKS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Im On Board
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App is designed specifically for seafarers to easily track and manage their sea service. You can log vessel details, monitor sea time and record important events. All in one place. Stay organized and up to date with user friendly interface tailored to meet the needs of maritime professionals.
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 update cadence: Im On Board at every 9 days against DRFT MRKS's monthly. Im On Board also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Im On Board ships an update every 9 days, DRFT MRKS monthly. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.
| Parameter | Im On Board | DRFT MRKS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 25 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Katarzyna Drop | Tymor Marine Ltd |
In-app purchases
Im On Board
No in-app purchases
DRFT MRKS
No in-app purchases
