# Simple Colregs vs Master

The clearest difference is update cadence: Master at fortnightly against Simple Colregs's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Simple Colregs ships an update every 2 months, Master fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simple Colregs | Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/master-nav-colregs-iala-tests/id6758554000/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 20 MB | 305 MB |
| Requires iOS | 18.5 | **17.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Angad C](https://appshunter.io/developer/1464302295) | [Peterjohn Chisholm](https://appshunter.io/developer/1602390398) |

## 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


### Master

[App page](https://appshunter.io/ios/app/master-nav-colregs-iala-tests/id6758554000)

Practice maritime navigation rules and buoyage systems with this app. It helps you identify knowledge gaps and track your progress in mastering essential regulations for mariners.

**Highlights:** USCG Navigation Rules practice, IALA Maritime Buoyage System tests, Knowledge gap identification, Progress tracking, Developed by Master Mariner

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Colregs free?

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

### Is Master free?

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

### Do Simple Colregs or Master have ads?

Neither Simple Colregs nor Master shows ads.

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

Simple Colregs ships an update every 2 months, and Master fortnightly. Most recently, Simple Colregs was updated on October 30, 2026 and Master on October 31, 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.*