# RadarPlot: Radar Plot Trainer — CPA & Collision Avoidance

> CPA & Collision Avoidance (iPhone/iPad app by Paulina Praciak.)

- Source: https://appshunter.io/ios/app/radarplot-radar-plot-trainer/id6757932413 (this page in markdown: same URL + `.md`)
- Developer: [Paulina Praciak](https://appshunter.io/developer/1869727950)
- Category: Education, Navigation
- Price: Free with in-app purchases (on sale, was $7.99)
- Age rating: 4+
- Requires: iOS 15.1 · 58 MB
- Languages: American English
- Released: 2026-01-27
- Data updated: 2026-09-04
- User reviews in markdown: https://appshunter.io/ios/app/radarplot-radar-plot-trainer/id6757932413/reviews.md

## What is RadarPlot?

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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Access | $14.99 | one-time |



## Version history (last 3 releases)

### 1.0.10 — 2026-08-27

Improved App Store presentation and updated product information. Minor bug fixes and performance improvements.

### 1.0.9 — 2026-06-16

Minor bug fixes and performance improvements.

### 1.0.8 — 2026-01-27

No release notes.

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## More apps by Paulina Praciak

- [True Wind Pro](https://appshunter.io/ios/app/true-wind-pro/id6758668604)
- [FjordScan: PDF Scanner](https://appshunter.io/ios/app/fjordscan-pdf-scanner/id6780668425)

All apps by Paulina Praciak: https://appshunter.io/developer/1869727950

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*