# GMDSS TRAINER vs RadarPlot

The clearest difference is update cadence: GMDSS TRAINER at every 6 weeks against RadarPlot's every 4 months. RadarPlot's advantage is iOS requirement (15.1 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. GMDSS TRAINER sells 1 one-off in-app purchase and RadarPlot sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

GMDSS TRAINER ships an update every 6 weeks, RadarPlot every 4 months. The most recent releases landed on September 6, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | GMDSS TRAINER | RadarPlot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 19 MB | 58 MB |
| Requires iOS | 26.1 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Osprey Applications LLC](https://appshunter.io/developer/1619576372) | [Paulina Praciak](https://appshunter.io/developer/1869727950) |

## What reviewers say

### GMDSS TRAINER

[App page](https://appshunter.io/ios/app/gmdss-trainer/id6757383433)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $14.99 | one-time |


### RadarPlot

[App page](https://appshunter.io/ios/app/radarplot-radar-plot-trainer/id6757932413)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is GMDSS TRAINER free?

GMDSS TRAINER is free to download, with in-app purchases available.

### Is RadarPlot free?

RadarPlot is free to download, with in-app purchases available.

### Do GMDSS TRAINER or RadarPlot have ads?

Neither GMDSS TRAINER nor RadarPlot shows ads.

### Which is updated more often, GMDSS TRAINER or RadarPlot?

GMDSS TRAINER ships an update every 6 weeks, and RadarPlot every 4 months. Most recently, GMDSS TRAINER was updated on September 6, 2026 and RadarPlot on September 18, 2026.

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