# Simple Colregs vs RadarPlot

The clearest difference is in-app purchases: Simple Colregs at none against RadarPlot's 1. Simple Colregs also leads on update cadence (every 2 days vs every 4 months). RadarPlot's advantage is iOS requirement (15.1 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. RadarPlot sells 1 one-off in-app purchase. Simple Colregs asks for nothing beyond the download.

Simple Colregs ships an update every 2 days, RadarPlot every 4 months. Both last shipped on October 5, 2026.

## The numbers

| Metric | Simple Colregs | RadarPlot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 months |
| Size | 21 MB | 58 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Angad C](https://appshunter.io/developer/1464302295) | [Paulina Praciak](https://appshunter.io/developer/1869727950) |

## What reviewers say

### Simple Colregs

[App page](https://appshunter.io/ios/app/simple-colregs/id6748556558)

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

**In-app purchases:** none


### 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 Simple Colregs free?

Simple Colregs is free to download, with no in-app purchases.

### Is RadarPlot free?

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

### Do Simple Colregs or RadarPlot have ads?

Neither Simple Colregs nor RadarPlot shows ads.

### Which is updated more often, Simple Colregs or RadarPlot?

Simple Colregs ships an update every 2 days, and RadarPlot every 4 months. Most recently, Simple Colregs was updated on October 5, 2026 and RadarPlot on October 5, 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.*