Comparison

Maritime Master vs CSM MATE

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

Head to head
About

Maritime Master

Learn seamanship and small-craft navigation with interactive diagrams and calculators. Practice plotting positions, understanding tides, and mastering navigation techniques. Includes a reference library for essential maritime knowledge.

Highlights
  • Interactive diagrams and calculators
  • Dead reckoning and estimated position plotting
  • Tidal height and stream visualization
  • Position fixing and compass error modules
  • COLREGs, VHF, and meteorology reference
  • Speed-time-distance and unit conversion calculators
Features
Read full description

Maritime Master – Skipper is a learning companion for seamanship and small-craft navigation. It explains core concepts with interactive diagrams and clear calculators so you can practise the methods, see the effects of wind and current, and build confidence before you go afloat. Train the full workflow from plan to pilotage. Plot dead reckoning and estimated positions, add leeway, and model set and drift to understand motion over the ground. Work out a course to steer to make good a desired track, then explore how small changes in time, speed or current alter the result. A position-fixing module shows how one, two or three bearings intersect, while the compass section helps you understand deviation and compass error. Tides are presented visually to make the theory stick. Compare the Rule of Twelfths with a sine-curve model, step through time to see heights change, and review tidal streams in an easy atlas format. Passage-planning and pilotage notes turn chartwork techniques into practical checklists for entering and leaving harbour. A built-in reference library keeps key knowledge together for study: COLREGs text with buoyage, sound signals, day shapes and rules of the road; VHF channels and radio frequencies; concise emergency procedure overviews; plus meteorology essentials including the Beaufort scale, Douglas sea states, wind barbs, cloud types, weather fronts and the Coriolis effect. Calculators cover speed–time–distance, ETA, set and drift, position fixing, rhumb vs great-circle distance, true wind and comprehensive unit conversions. Training-only notice: Maritime Master – Skipper is for education, revision and simulation. It is not a substitute for official charts, publications, instruments or certified training, and must not be used for real-world navigation or operational decision-making. Always navigate using approved sources and local notices to mariners.

About

CSM MATE

Features
Read full description

CSM Mate is a dedicated mobile app for seafarers and sailors who want to easily manage their maritime training at CSM Gdynia. The app supports participants of STCW-certified and professional maritime courses, helping them stay organized throughout the entire training process — from course selection to certification management. Key features: • Browse and reserve available training courses at CSM Gdynia • Receive notifications and reminders related to your booked courses • Manage certificates and training documents in one place • Store and organize seafarer’s documents, including your seaman’s book • Create and maintain a professional maritime CV CSM Mate is designed to simplify administrative tasks and give trainees quick access to essential training information, allowing them to focus on developing their professional skills. The app is intended for maritime trainees, seafarers, and sailors participating in professional education and certification programs. Payments for course reservations, if applicable, are handled securely via external payment providers. CSM Mate — your reliable companion in maritime education and professional development.

Screenshots

Maritime Master4 screens
CSM MATE4 screens

Verdict

The call

The clearest difference is update cadence: CSM MATE at every 2 weeks against Maritime Master's every 6 weeks. CSM MATE also leads on iOS requirement (15.5 vs 17.6). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Maritime Master ships an update every 6 weeks, CSM MATE every 2 weeks. Both last shipped on November 5, 2026.

Scorecard2 real differences · 8 level
Maritime Master versus CSM MATE: the parameters behind the verdict, then further details
ParameterMaritime MasterCSM MATE
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.5 — better
Further details — not scored
Size10 MB124 MB
Age rating4+17+
DeveloperMARITIME MASTER LIMITEDBAXY IT sp. z o.o.

In-app purchases

None

Maritime Master

No in-app purchases

None

CSM MATE

No in-app purchases

Questions

Is Maritime Master free?
Maritime Master is free to download, with no in-app purchases.
Is CSM MATE free?
CSM MATE is free to download, with no in-app purchases.
Do Maritime Master or CSM MATE have ads?
Neither Maritime Master nor CSM MATE shows ads.
Which is updated more often, Maritime Master or CSM MATE?
Maritime Master ships an update every 6 weeks, and CSM MATE every 2 weeks. Most recently, Maritime Master was updated on November 5, 2026 and CSM MATE on November 5, 2026.

Other comparisons