# Матрос vs Дельта

The clearest difference is review sentiment: Матрос at 40% against Дельта's 0%. Матрос also leads on iOS requirement (10.0 vs 12.0). Дельта's advantage is update cadence (every 4 months vs every 38 months) and price ($3.99 vs $6.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Матрос costs $6.99 and Дельта $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Матрос ships an update every 38 months, Дельта every 4 months. The most recent releases landed on September 8, 2026 and August 30, 2026 respectively.

## The numbers

| Metric | Матрос | Дельта |
| --- | --- | --- |
| Price | $6.99 | **$3.99** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/2026/id1551858713/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 19 MB | 78 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maxim Lukyanenko](https://appshunter.io/developer/1496252741) | [Andrey Andreyev](https://appshunter.io/developer/1418253369) |

## What reviewers say

### Матрос

[App page](https://appshunter.io/ios/app/id1496735246)

This app provides a comprehensive database of questions and answers for maritime students preparing for qualification exams. It offers customizable practice tests and a search function for easy access to information. All content is sourced from open online resources.

**Highlights:** Exam question and answer database, Customizable practice testing, Search functionality, Categorized questions, Offline access

**Features:** macOS Compatibility

**In-app purchases:** none


### Дельта

[App page](https://appshunter.io/ios/app/2026/id1551858713)

Prepare for maritime certification exams with this test simulator. It includes official questions and answers for qualified and watchkeeping sailors, covering safety, navigation, cargo operations, and environmental protection. Work offline and use the built-in search.

**Highlights:** Official exam questions and answers, Covers safety, navigation, and cargo, Offline functionality, Built-in search, Preparation for Convention Plus 3.0

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Матрос free?

Матрос costs $6.99, with no in-app purchases.

### Is Дельта free?

Дельта costs $3.99, with no in-app purchases.

### Do Матрос or Дельта have ads?

Neither Матрос nor Дельта shows ads.

### Which is updated more often, Матрос or Дельта?

Матрос ships an update every 38 months, and Дельта every 4 months. Most recently, Матрос was updated on September 8, 2026 and Дельта on August 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.*