Comparison

MARPOL vs Maritime Master

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

Head to head
About

MARPOL

This interactive course covers the MARPOL Convention, including all annexes with detailed visuals. Engage with varied tests to master the material and aim for captain-level knowledge.

Highlights
  • Interactive MARPOL Convention course
  • All MARPOL Annexes included
  • Detailed images
  • Varied tests and tasks
  • Progress tracking to captain level
Features
Read full description

Interactive course of the MARPOL Convention. All Annexes of MARPOL with detailed images. Lots of interesting and varied tests. Try to complete all the tasks and become a captain.

About

Maritime Master

Features
Read full description

Stop memorising the regulations. Start mastering them. Maritime Master - COLREG is the definitive interactive guide to the International Regulations for Preventing Collisions at Sea (COLREGs / IRPCS). Designed for deck officers, yachtmasters, and serious boaters, this app replaces dry textbooks with intuitive visual simulations. Whether you are preparing for your exams, or simply need a reliable pocket reference at sea, Maritime Master helps you learn faster and retain more. Most apps just copy-paste the rules. We bring them to life. Interactive Scenarios: Don’t just read Rule 14 (Head-on) or Rule 15 (Crossing), control the vessels on screen to see exactly who gives way. Visual Light Sectors: Build the "Mercedes" arc yourself. Finally understand exactly what 112.5Β°, 135Β°, and 225Β° look like in real life. Smart Quizzes: Test your knowledge with "Exam Trap" questions that highlight common mistakes students make in oral exams. KEY FEATURES Complete Rule Book (1-38): Full, searchable text of the Steering and Sailing Rules, perfectly formatted for mobile. Navigation Lights & Shapes: Toggle between Day, Night, and Fog modes to master Rule 20. See instantly how shapes change for RAM, CBD, NUC, and Fishing vessels. Restricted Visibility (Rule 19): A dedicated Radar Simulator helps you decide whether to turn to starboard or reduce speed in fog.Β  Sound & Distress Signals: Interactive buttons to hear blast patterns (Rule 34/35) and visualize Annex IV distress signals like Red Flares and Smoke.Β  Steering Rules Visualized: * Overtaking (Rule 13): Clearly see the overtaking sector vs. crossing. Narrow Channels (Rule 9): Master positioning and bends.Β  TSS (Rule 10): Visualize lane discipline and crossing angles.Β  Offline Ready: No internet required. Study in your bunk, on watch (if allowed!), or commuting. PERFECT FOR: Student Officers: Cadets, OOW, Chief Mate, Master 3000 (MCA / USCG / International). Yachting Pros: RYA Yachtmaster Offshore / Ocean, Master 200/500. Leisure Boaters: Day Skipper, Powerboat Level 2, ICC Sailing Schools: A perfect visual aid for instructors teaching the Rules of the Road. INCLUDES: Part A: General Part B: Steering and Sailing Rules (Sections I, II, III) Part C: Lights and Shapes Part D: Sound and Light Signals Part E: Exemptions Annexes (Distress Signals, etc.) Download Maritime Master - COLREG today and pass your COLREGs exams with confidence.

Screenshots

MARPOL4 screens
Maritime Master4 screens

Verdict

The call

The clearest difference is update cadence: Maritime Master at every 11 days against MARPOL's every 2 months. MARPOL's advantage is price ($1.99 vs $3.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

MARPOL costs $1.99 and Maritime Master $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MARPOL ships an update every 2 months, Maritime Master every 11 days. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

Scorecard2 real differences Β· 6 level
MARPOL versus Maritime Master: the parameters behind the verdict, then further details
ParameterMARPOLMaritime Master
Price$1.99 β€” better$3.99
Positive reviews0.0% of reviewsβ€”
Update frequencyEvery 2 monthsEvery 11 days β€” better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidβ€”
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.5 β€” better17.6
Further details β€” not scored
Size36 MB5 MB
Age rating4+4+
DeveloperOLEKSANDR IZERGINMARITIME MASTER LIMITED

In-app purchases

None

MARPOL

No in-app purchases

None

Maritime Master

No in-app purchases

Questions

Is MARPOL free?
MARPOL costs $1.99, with no in-app purchases.
Is Maritime Master free?
Maritime Master costs $3.99, with no in-app purchases.
Do MARPOL or Maritime Master have ads?
Neither MARPOL nor Maritime Master shows ads.
Which is updated more often, MARPOL or Maritime Master?
MARPOL ships an update every 2 months, and Maritime Master every 11 days. Most recently, MARPOL was updated on October 10, 2026 and Maritime Master on October 24, 2026.

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