# CMET Lucknow vs GMDSS TRAINER

The clearest difference is in-app purchases: CMET Lucknow at none against GMDSS TRAINER's 1. CMET Lucknow also leads on iOS requirement (15.0 vs 26.1). GMDSS TRAINER's advantage is update cadence (every 4 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. GMDSS TRAINER sells 1 one-off in-app purchase. CMET Lucknow asks for nothing beyond the download.

CMET Lucknow ships an update every 2 months, GMDSS TRAINER every 4 weeks. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CMET Lucknow | GMDSS TRAINER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gmdss-trainer/id6757383433/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | — | Free |
| Size | 38 MB | 27 MB |
| Requires iOS | **15.0** | 26.1 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Knoty Labs Private Limited](https://appshunter.io/developer/1066117971) | [Osprey Applications LLC](https://appshunter.io/developer/1619576372) |

## What reviewers say

### CMET Lucknow

[App page](https://appshunter.io/ios/app/cmet-lucknow/id6670388348)

**Features:** macOS Compatibility

**In-app purchases:** none


### GMDSS TRAINER

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

Prepare for FCC maritime radio operator exams with this comprehensive study companion. It features official question pools, AI-powered explanations for complex topics, and flexible study modes to help you understand material and pass your certification tests.

**Highlights:** Official FCC question pools, AI-powered explanations, Multiple study modes (Practice, Exam, Review), Detailed analytics and progress tracking, Smart flagging for difficult questions, Topic-based performance breakdowns

**Features:** Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is CMET Lucknow free?

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

### Is GMDSS TRAINER free?

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

### Do CMET Lucknow or GMDSS TRAINER have ads?

Neither CMET Lucknow nor GMDSS TRAINER shows ads.

### Which is updated more often, CMET Lucknow or GMDSS TRAINER?

CMET Lucknow ships an update every 2 months, and GMDSS TRAINER every 4 weeks. Most recently, CMET Lucknow was updated on October 27, 2026 and GMDSS TRAINER 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.*