Comparison

Maritime Master vs RadarPlot

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

RadarPlot

Features
Read full description

Master radar plotting through practical, interactive exercises. RadarPlot is a professional training tool for maritime cadets, deck officers and navigators learning the 6-minute plotting method, relative motion, CPA calculations and collision-avoidance maneuvers. PRACTICE RADAR PLOTTING • Record target range and bearing observations • Plot multiple radar targets • Use a North-Up stabilized radar display • Adjust plotting intervals and range scales • Zoom and pan without affecting calculations CALCULATE CPA AND TARGET MOTION • Automatically construct the Relative Motion Line • Calculate CPA, TCPA and relative speed • Determine the target’s true course and speed • Visualize own-ship and target-motion vectors • Practice the standard 6-minute plotting method PLAN COLLISION-AVOIDANCE MANEUVERS • Set a required minimum passing distance • Calculate course-only and speed-only solutions • Select the maneuver execution point • Display the Advanced Relative Motion Line • Compare alternative maneuvering decisions BUILT FOR MARITIME TRAINING Use built-in scenarios and answer-reveal tools to learn step by step or practise independently. Ideal for maritime academy students, deck officers preparing for examinations, navigators refreshing manual plotting skills and instructors demonstrating relative-motion geometry. Train smarter. Understand the plot. Make safer decisions.

Screenshots

Maritime Master4 screens
RadarPlot4 screens

Verdict

The call

The clearest difference is in-app purchases: Maritime Master at none against RadarPlot's 1. Maritime Master also leads on update cadence (every 6 weeks vs every 4 months). RadarPlot's advantage is iOS requirement (15.1 vs 17.6). On price, ads 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. RadarPlot sells 1 one-off in-app purchase. Maritime Master asks for nothing beyond the download.

UpkeepUpdate frequency

Maritime Master ships an update every 6 weeks, RadarPlot every 4 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Maritime Master versus RadarPlot: the parameters behind the verdict, then further details
ParameterMaritime MasterRadarPlot
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 6 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.1 — better
Further details — not scored
Size10 MB58 MB
Age rating4+4+
DeveloperMARITIME MASTER LIMITEDPaulina Praciak

In-app purchases

None

Maritime Master

No in-app purchases

1 purchases

RadarPlot

One-time1
  • Lifetime Access$14.99

Questions

Is Maritime Master free?
Maritime Master is free to download, with no in-app purchases.
Is RadarPlot free?
RadarPlot is free to download, with in-app purchases available.
Do Maritime Master or RadarPlot have ads?
Neither Maritime Master nor RadarPlot shows ads.
Which is updated more often, Maritime Master or RadarPlot?
Maritime Master ships an update every 6 weeks, and RadarPlot every 4 months. Most recently, Maritime Master was updated on October 30, 2026 and RadarPlot on October 31, 2026.

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