Maritime Master vs RadarPlot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Maritime Master
This simulator helps maritime students and enthusiasts practice radar navigation and collision avoidance. It offers realistic radar physics, ARPA functionality, and various display modes to enhance learning in a safe, controlled environment.
- Realistic radar physics with adjustable controls
- Full ARPA functionality for target tracking
- True and Relative Vector modes
- Standard navigation tools (VRM, EBL)
- Multiple display and orientation modes
- Scenario library for COLREGs practice
- Simulated AIS overlays
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Maritime Master - Radar is a simulator designed to help maritime students, deck officers, and enthusiasts practice radar navigation and collision avoidance workflows in a safe, controlled environment. Bridging the gap between theory and the bridge, this app transforms your device into a fully functional radar station. Whether you are refreshing your knowledge of Relative Motion vs. True Motion or practicing the mechanics of target tracking, this simulator offers a realistic "Green Screen" experience powered by Metal graphics for an authentic sweep and decay effect. IMPORTANT: FOR SIMULATION & TRAINING PURPOSES ONLY. This application is a simulator designed for practice and educational reinforcement. It is not a regulated piece of navigation equipment and must not be used for real-world navigation or collision avoidance on a vessel. Key Features: - Realistic Radar Physics: Experience authentic sweep visuals with adjustable Gain, Sea Clutter, and Rain Clutter controls to simulate varying environmental conditions. - Full ARPA Functionality: Acquire and track targets to calculate CPA (Closest Point of Approach) and TCPA. Visualize risks with dangerous target alarms. - Vector Modes: Switch between True and Relative Vectors to visualize target aspect and movement. Adjust vector length (minutes) to predict future positions. - Standard Navigation Tools: Utilize dual Variable Range Markers (VRM) and Electronic Bearing Lines (EBL) to determine range and bearing with precision. - Display Modes: Toggle between Head Up, North Up, and Course Up orientation. Switch the display between Relative Motion (RMTT) and True Motion to understand traffic flow. Scenario Library: Test your COLREGs knowledge with pre-built scenarios including: - Crossing Situations (Stand-on and Give-way) - Overtaking and Being Overtaken - Head-on encounters - Busy waters with mixed traffic types - Coastal navigation with land masking "True View" Overlay: Toggle the underlying map view to compare the radar return against the "ground truth" of the scenario. AIS Integration: Simulated AIS overlays provide target names, types, and kinematic data (COG/SOG) alongside raw radar echoes. Practice Scenarios: The app includes a suite of scenarios designed to test specific competencies. From simple open-water encounters to complex multi-vessel situations involving fishing vessels, cargo ships, and high-speed craft, you can practice your decision-making without the risk. Own-ship Control: Take command of your vessel. Adjust your Heading and Speed to execute collision avoidance manoeuvres and observe the resulting change in Relative Motion on the scope. Whether you are studying for your OOW exams or just want to keep your radar skills sharp, Maritime Master - Radar puts the Plan Position Indicator (PPI) in your pocket. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
RadarPlot
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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
Verdict
The clearest difference is update cadence: Maritime Master at every 2 weeks against RadarPlot's every 4 months. RadarPlot's advantage is iOS requirement (15.1 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
Both are free to download. Maritime Master sells 2 in-app purchases, starting at $1.99 per month and RadarPlot sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Maritime Master ships an update every 2 weeks, RadarPlot every 4 months. The most recent releases landed on September 11, 2026 and September 18, 2026 respectively.
| Parameter | Maritime Master | RadarPlot |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 40 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | MARITIME MASTER LIMITED | Paulina Praciak |
In-app purchases
Maritime Master
- Maritime Master - Radar Pro7 Days trial$1.991 Month
- MMR Pro Max14 Days trial$4.991 Month
RadarPlot
- Lifetime Access$14.99







