Comparison

MARPOL vs Maritime Master

Price, ratings, monetisation and update history for both apps, side by side — 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

Master maritime knowledge with this comprehensive app. Practice radar plotting, perform essential navigation and ship calculations, and review nautical regulations and procedures. Includes interactive learning tools and exam preparation features for deck cadets and officers.

Highlights
  • Radar plotting simulator
  • Navigation and ship calculation suite
  • Nautical regulations library
  • COLREGs mastery tools
  • Interactive learning games
  • OOW progress tracker
Features
Read full description

Study faster. Sail safer. Practice radar plotting, run bridge calculations, and master COLREGs, all in one app built for OOW prep and day-to-day reference. Designed for deck cadets, maritime students, and working officers (OOW, 3/O, 2/O). Radar plotting simulator: Add multiple targets with custom courses and speeds Automatic CPA/TCPA with clear high-risk warnings Relative motion vectors and target trails to visualise situations Training disclaimer: This simulator is for education only and must not be used for real-world navigation or collision-avoidance decisions. Calculation suite: Navigation: Speed–Time–Distance, ETA, Dead Reckoning, Course & Distance (Rhumb Line & Great Circle), Set & Drift & Fix Position Terrestrial & Celestial: Compass Error, Parallel Indexing, Object Distance, Advance & Transfer, Meridian Passage & LOP sight-reduction helper Stability & Ship Construction: FSE correction, Mean Draft, TPC/LCF usage, Trim & VCG Meteorology: True Wind, Barometer corrections, Beaufort scale converter & Tides and Currents Essential learning & reference library: Regulations: SOLAS, MARPOL, STCW, ISM Code, ISPS Code, GMDSS (quick-reference guides) Core nautical knowledge: Passage planning; ECDIS & charts; basic stability; compass deviation Procedures: Emergency procedures; SOPEP & SMPEP; checklists for safe watchkeeping; logbook entries; equipment handover Electronic navigation: AIS data interpretation; ECDIS functions; AIS/MMSI code reference Master the Rules of the Road (COLREGs): Shapes and sound signals International Code of Signals (ICOS) IALA buoyage systems (A & B) Test yourself & prep for exams: Flashcards, ICOS Hangman, and a Buoy Night-Light game OOW progress tracker. Who is it for? Maritime students & deck cadets: build a strong foundation Officers in training: prepare confidently for OOW certification Active deck officers: quick reference, calculation practice, and knowledge refreshers Anyone who wants to learn more about maritime and OOW Download Maritime Master - OOW and advance your maritime knowledge with confidence.

Screenshots

MARPOL4 screens
Maritime Master4 screens

Verdict

The call

The clearest difference is review sentiment: Maritime Master at 100% against MARPOL's 0%. Maritime Master also leads on update cadence (every 3 weeks vs every 2 months). MARPOL's advantage is price ($1.99 vs $9.99). On ads, in-app purchases, monetization model 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

MARPOL costs $1.99 and Maritime Master $9.99 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 3 weeks. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
MARPOL versus Maritime Master: the parameters behind the verdict, then further details
ParameterMARPOLMaritime Master
Price$1.99 — better$9.99
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.517.0 — better
Further details — not scored
Size36 MB21 MB
Age rating4+4+
DeveloperOLEKSANDR IZERGINMARITIME MASTER LIMITED

Customer experience

MARPOL

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Maritime Master

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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 $9.99, 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 3 weeks. Most recently, MARPOL was updated on October 10, 2026 and Maritime Master on October 14, 2026.

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