# COLREG vs TrueMag

The clearest difference is price: TrueMag at Free against COLREG's $0.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

TrueMag is free to download; COLREG costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | COLREG | TrueMag |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Paid | — |
| Size | 133 MB | 1 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Kuzmychov](https://appshunter.io/developer/1623095994) | [Peter Bleakley](https://appshunter.io/developer/1808301359) |

## What reviewers say

### COLREG

[App page](https://appshunter.io/ios/app/colreg/id6446209111)

Master maritime navigation with this comprehensive guide to the International Regulations for Preventing Collisions at Sea. Learn about ship lights, day shapes, sound signals, and access the full COLREGs for safe sailing.

**Highlights:** Ship lights guide, Day shapes meanings, Sound signals library, Complete COLREGs access, Flashcards for study

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

**In-app purchases:** none


### TrueMag

[App page](https://appshunter.io/ios/app/truemag/id6747299823)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is COLREG free?

COLREG costs $0.99, with no in-app purchases.

### Is TrueMag free?

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

### Do COLREG or TrueMag have ads?

Neither COLREG nor TrueMag shows ads.

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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.*