# Marine Master Self Test vs Seabook+

The clearest difference is review sentiment: Seabook+ at 53% against Marine Master Self Test's 0%. Seabook+ also leads on update cadence (every 35 months vs every 112 months) and iOS requirement (13.0 vs 15.1). Marine Master Self Test's advantage is price ($3.99 vs $6.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Marine Master Self Test costs $3.99 and Seabook+ $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Marine Master Self Test ships an update every 112 months, Seabook+ every 35 months. The most recent releases landed on October 6, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Marine Master Self Test | Seabook+ |
| --- | --- | --- |
| Price | **$3.99** | $6.99 |
| Rating | — | **[4.0 (3 ratings)](https://appshunter.io/ios/app/seabook-plus/id1517249755/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 0.0% of reviews | **53.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 112 months | **Every 35 months** |
| Monetization | Paid | Paid |
| Size | 30 MB | 37 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Femaso Holdings Pty Ltd](https://appshunter.io/developer/1082550083) | [Ozgur GUNES](https://appshunter.io/developer/708215144) |

## What reviewers say

### Marine Master Self Test

[App page](https://appshunter.io/ios/app/marine-master-self-test/id1082550084)

Prepare for maritime exams with this self-testing tool. It uses visual clues to help you identify subjects and determine actions, covering 10 key maritime knowledge categories. Track your progress with scoring for each section.

**Highlights:** Visual clue-based testing, 10 test categories, Progress tracking with scoring, Search facility for cards, AMSA Coxswain/Master exam prep

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

**In-app purchases:** none


### Seabook+

[App page](https://appshunter.io/ios/app/seabook-plus/id1517249755)

This app provides comprehensive maritime information for professionals and enthusiasts. It offers tools for navigational and technical computations, designed for easy use at sea with offline accessibility and a user-friendly interface.

**Highlights:** Comprehensive maritime information, Navigational and technical computations, Offline accessibility, User-friendly interface, Information for marine professionals, Knowledge for sea enthusiasts

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

**In-app purchases:** none


## Frequently asked questions

### Is Marine Master Self Test free?

Marine Master Self Test costs $3.99, with no in-app purchases.

### Is Seabook+ free?

Seabook+ costs $6.99, with no in-app purchases.

### Do Marine Master Self Test or Seabook+ have ads?

Neither Marine Master Self Test nor Seabook+ shows ads.

### Which is updated more often, Marine Master Self Test or Seabook+?

Marine Master Self Test ships an update every 112 months, and Seabook+ every 35 months. Most recently, Marine Master Self Test was updated on October 6, 2026 and Seabook+ on October 27, 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.*