# NAUTICAL CHART SYMBOLS GUIDE vs Radar Plotting

The clearest difference is rating: Radar Plotting at 5.0 against NAUTICAL CHART SYMBOLS GUIDE's 3.5. Radar Plotting also leads on update cadence (every 5 months vs every 80 months). NAUTICAL CHART SYMBOLS GUIDE's advantage is price ($1.99 vs $7.99). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

NAUTICAL CHART SYMBOLS GUIDE costs $1.99 and Radar Plotting $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Radar Plotting holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

NAUTICAL CHART SYMBOLS GUIDE ships an update every 80 months, Radar Plotting every 5 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | NAUTICAL CHART SYMBOLS GUIDE | Radar Plotting |
| --- | --- | --- |
| Price | **$1.99** | $7.99 |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/nautical-chart-symbols-guide/id687296241/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/radar-plotting/id1470598201/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 80 months | **Every 5 months** |
| Monetization | Paid | Paid |
| Size | 41 MB | 17 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Other Hat](https://appshunter.io/developer/573973071) | [Giacomo Gabriele](https://appshunter.io/developer/1455745031) |

## What reviewers say

### NAUTICAL CHART SYMBOLS GUIDE

[App page](https://appshunter.io/ios/app/nautical-chart-symbols-guide/id687296241)

This app provides a comprehensive reference for nautical chart symbols and abbreviations, including international standards and supplementary national symbols. It's designed for learning, revision, and quick lookups with a searchable index and offline access.

**Highlights:** International Hydrographic Organization (IHO) symbols, Supplementary US and UK national symbols, Fully searchable index, Tap & Enlarge feature, Offline access, Bonus emergency tips

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Radar Plotting

[App page](https://appshunter.io/ios/app/radar-plotting/id1470598201)

This app offers advanced radar plotting for maritime navigation. It allows users to calculate critical encounter data, plan maneuvers, and analyze complex scenarios with interactive visualizations. Designed for training and decision support, it aids in understanding vessel interactions.

**Highlights:** Kinematic calculations (CPA/TCPA, aspect), True and relative speed estimation, Evasive maneuver planning with COLREG guidance, Rescue and escape scenario planning, Double-target analysis, Current and drift estimation, Interactive radar canvas with playback

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NAUTICAL CHART SYMBOLS GUIDE free?

NAUTICAL CHART SYMBOLS GUIDE costs $1.99, with no in-app purchases.

### Is Radar Plotting free?

Radar Plotting costs $7.99, with no in-app purchases.

### Which has better reviews, NAUTICAL CHART SYMBOLS GUIDE or Radar Plotting?

Radar Plotting is rated higher. NAUTICAL CHART SYMBOLS GUIDE averages 3.5 out of 5 from 2 ratings, while Radar Plotting averages 5.0 from 1 ratings.

### Do NAUTICAL CHART SYMBOLS GUIDE or Radar Plotting have ads?

Neither NAUTICAL CHART SYMBOLS GUIDE nor Radar Plotting shows ads.

### Which is updated more often, NAUTICAL CHART SYMBOLS GUIDE or Radar Plotting?

NAUTICAL CHART SYMBOLS GUIDE ships an update every 80 months, and Radar Plotting every 5 months. Most recently, NAUTICAL CHART SYMBOLS GUIDE was updated on November 6, 2026 and Radar Plotting on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*