# GMDSS TRAINER vs Binnacle School

The clearest difference is update cadence: Binnacle School at weekly against GMDSS TRAINER's every 6 weeks. Binnacle School also leads on iOS requirement (17.0 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. GMDSS TRAINER sells 1 one-off in-app purchase and Binnacle School sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

GMDSS TRAINER ships an update every 6 weeks, Binnacle School weekly. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | GMDSS TRAINER | Binnacle School |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/binnacle-school/id6778185737/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 19 MB | 3 MB |
| Requires iOS | 26.1 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Osprey Applications LLC](https://appshunter.io/developer/1619576372) | [John Thomas](https://appshunter.io/developer/1896733361) |

## What reviewers say

### GMDSS TRAINER

[App page](https://appshunter.io/ios/app/gmdss-trainer/id6757383433)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $14.99 | one-time |


### Binnacle School

[App page](https://appshunter.io/ios/app/binnacle-school/id6778185737)

Prepare for your U.S. Coast Guard captain's license exams with a structured, module-based study approach. Practice questions with detailed explanations and interactive drills to master navigation, seamanship, and more. Track student progress for classes or unlock all content with a premium subscription.

**Highlights:** Module-based exam preparation, Explanation on every question, Interactive drills for practical skills, Class management and student tracking, Progressive unlocking of study modules, Daily practice with built-in tutor

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Binnacle School Premium | $4.99 | per month |
| Binnacle School Premium | $29.99 | per year |
| Lifetime Access | $79.99 | one-time |


## Frequently asked questions

### Is GMDSS TRAINER free?

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

### Is Binnacle School free?

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

### Do GMDSS TRAINER or Binnacle School have ads?

Neither GMDSS TRAINER nor Binnacle School shows ads.

### Which is updated more often, GMDSS TRAINER or Binnacle School?

GMDSS TRAINER ships an update every 6 weeks, and Binnacle School weekly. Most recently, GMDSS TRAINER was updated on October 5, 2026 and Binnacle School on September 30, 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.*