# Onboard Maritime vs Maritime Master

The clearest difference is in-app purchases: Maritime Master at none against Onboard Maritime's 2. Maritime Master also leads on update cadence (every 10 days vs every 3 months) and iOS requirement (13.0 vs 15.2). On price, ads and device support there is nothing between them.

Both are free to download. Onboard Maritime sells 2 one-off in-app purchases. Maritime Master asks for nothing beyond the download.

Onboard Maritime ships an update every 3 months, Maritime Master every 10 days. Both last shipped on November 4, 2026.

## The numbers

| Metric | Onboard Maritime | Maritime Master |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 110 MB | 2.3 GB |
| Requires iOS | 15.2 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Onboard Maritime Limited](https://appshunter.io/developer/1725092070) | [MARITIME MASTER LIMITED](https://appshunter.io/developer/1107589346) |

## What reviewers say

### Onboard Maritime

[App page](https://appshunter.io/ios/app/onboard-maritime/id6475762026)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OOW Group Sessions | Free | one-time |
| Deck Officer | Free | one-time |


### Maritime Master

[App page](https://appshunter.io/ios/app/maritime-master/id6741146129)

Master maritime navigation and safety with an interactive 3D learning experience. Covers COLREGs, flags, ropework, navigation, meteorology, and more through engaging lessons and quizzes.

**Highlights:** Interactive 3D ropework and knot tying, COLREGs reference and quizzes, Flag and phonetic alphabet learning, Maritime safety procedures, Navigation tools and techniques, Meteorology and weather patterns, Comprehensive maritime exams

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Onboard Maritime free?

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

### Is Maritime Master free?

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

### Do Onboard Maritime or Maritime Master have ads?

Neither Onboard Maritime nor Maritime Master shows ads.

### Which is updated more often, Onboard Maritime or Maritime Master?

Onboard Maritime ships an update every 3 months, and Maritime Master every 10 days. Most recently, Onboard Maritime was updated on November 4, 2026 and Maritime Master on November 4, 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.*