# Adel Mostafa Software vs Master

The clearest difference is device support: Adel Mostafa Software at 3 against Master's 1. Adel Mostafa Software also leads on iOS requirement (11.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Adel Mostafa Software ships an update every 2 weeks, Master fortnightly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Adel Mostafa Software | Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/master-nav-colregs-iala-tests/id6758554000/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 46 MB | 305 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Olymp Soft FZE](https://appshunter.io/developer/1808683436) | [Peterjohn Chisholm](https://appshunter.io/developer/1602390398) |

## What reviewers say

### Adel Mostafa Software

[App page](https://appshunter.io/ios/app/adel-mostafa-software/id6473788417)

**Features:** macOS Compatibility

**In-app purchases:** none


### Master

[App page](https://appshunter.io/ios/app/master-nav-colregs-iala-tests/id6758554000)

Practice maritime navigation rules and buoyage systems with this app. It helps you identify knowledge gaps and track your progress in mastering essential regulations for mariners.

**Highlights:** USCG Navigation Rules practice, IALA Maritime Buoyage System tests, Knowledge gap identification, Progress tracking, Developed by Master Mariner

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

**In-app purchases:** none


## Frequently asked questions

### Is Adel Mostafa Software free?

Adel Mostafa Software is free to download, with no in-app purchases.

### Is Master free?

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

### Do Adel Mostafa Software or Master have ads?

Neither Adel Mostafa Software nor Master shows ads.

### Which is updated more often, Adel Mostafa Software or Master?

Adel Mostafa Software ships an update every 2 weeks, and Master fortnightly. Most recently, Adel Mostafa Software was updated on November 4, 2026 and Master 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.*