# Adel Mostafa Software vs Marine Survey Assistant

The clearest difference is in-app purchases: Adel Mostafa Software at none against Marine Survey Assistant's 9. Adel Mostafa Software also leads on ads (none vs shown) and iOS requirement (11.0 vs 13.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Marine Survey Assistant sells 9 one-off in-app purchases. Adel Mostafa Software asks for nothing beyond the download.

Adel Mostafa Software ships an update every 2 weeks, Marine Survey Assistant every 4 weeks. The most recent releases landed on October 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Adel Mostafa Software | Marine Survey Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/marine-survey-assistant/id6475769290/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 143 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Olymp Soft FZE](https://appshunter.io/developer/1808683436) | [Stanislav Soroka](https://appshunter.io/developer/1701402639) |

## What reviewers say

### Adel Mostafa Software

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Marine Survey Assistant

[App page](https://appshunter.io/ios/app/marine-survey-assistant/id6475769290)

This app offers a comprehensive suite of tools and information for marine professionals. It includes various calculators for draft, ballast, oil, and cargo, along with marine news, a port logbook, and video courses. Users can also manage documents and track contracts.

**Highlights:** Draft Survey Calculator, Ballast Calculator, Oil & Cargo Calculators, ETA & Slip Calculators, Unit Converter, Port Log Book, Marine News & Documents

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |
| Squat & UKC Calculator | $5.99 | one-time |
| ME Power Calculator | $6.99 | one-time |
| Draft & GM Calculator | $7.99 | one-time |
| Video Courses | $9.99 | one-time |
| Ballast Calculator | $14.99 | one-time |
| Сargo Trimming Calculator | $14.99 | one-time |
| Oil Calculator | $14.99 | one-time |
| Draft Survey Calculator | $17.99 | one-time |


## Frequently asked questions

### Is Adel Mostafa Software free?

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

### Is Marine Survey Assistant free?

Marine Survey Assistant is free to download, with in-app purchases available.

### Do Adel Mostafa Software or Marine Survey Assistant have ads?

Marine Survey Assistant shows ads; Adel Mostafa Software does not.

### Which is updated more often, Adel Mostafa Software or Marine Survey Assistant?

Adel Mostafa Software ships an update every 2 weeks, and Marine Survey Assistant every 4 weeks. Most recently, Adel Mostafa Software was updated on October 30, 2026 and Marine Survey Assistant on October 16, 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.*