# Crewservices. Дельта тест 3.0 vs Транспортная безопасность 2026

The clearest difference is in-app purchases: Crewservices. Дельта тест 3.0 at none against Транспортная безопасность 2026's 9. Crewservices. Дельта тест 3.0 also leads on update cadence (every 5 weeks vs every 3 months). Транспортная безопасность 2026's advantage is iOS requirement (12.4 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. Транспортная безопасность 2026 sells 9 one-off in-app purchases. Crewservices. Дельта тест 3.0 asks for nothing beyond the download.

Crewservices. Дельта тест 3.0 ships an update every 5 weeks, Транспортная безопасность 2026 every 3 months. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Crewservices. Дельта тест 3.0 | Транспортная безопасность 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 74 MB | 22 MB |
| Requires iOS | 14.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Alexey Seleznev](https://appshunter.io/developer/1211190063) | [Alisa Potapova](https://appshunter.io/developer/666897984) |

## What reviewers say

### Crewservices. Дельта тест 3.0

[App page](https://appshunter.io/ios/app/crewservices-30/id1211190064)

**Features:** macOS Compatibility

**In-app purchases:** none


### Транспортная безопасность 2026

[App page](https://appshunter.io/ios/app/2026/id1589410877)

Prepare for transport security certification exams for railway personnel in Russia. Features include study modes, practice tests, error tracking, and personalized learning options. Track your progress and customize exam settings for effective preparation.

**Highlights:** Study mode with answers and comments, Exam mode with random question sets, Marathon mode for full or partial tests, Error tracking and review, Favorites for saving questions, Detailed statistics and progress tracking, Customizable exam settings

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ОТБ Категория 1 | $1.99 | one-time |
| ОТБ Категория 2 | $1.99 | one-time |
| ОТБ Категория 3 | $1.99 | one-time |
| ОТБ Категория 4 | $1.99 | one-time |
| ОТБ Категория 6 | $1.99 | one-time |
| ОТБ Категория 5 | $1.99 | one-time |
| ОТБ Категория 7 | $1.99 | one-time |
| ОТБ Категория 8 | $1.99 | one-time |
| Все разделы со скидкой | $4.99 | one-time |


## Frequently asked questions

### Is Crewservices. Дельта тест 3.0 free?

Crewservices. Дельта тест 3.0 is free to download, with no in-app purchases.

### Is Транспортная безопасность 2026 free?

Транспортная безопасность 2026 is free to download, with in-app purchases available.

### Do Crewservices. Дельта тест 3.0 or Транспортная безопасность 2026 have ads?

Neither Crewservices. Дельта тест 3.0 nor Транспортная безопасность 2026 shows ads.

### Which is updated more often, Crewservices. Дельта тест 3.0 or Транспортная безопасность 2026?

Crewservices. Дельта тест 3.0 ships an update every 5 weeks, and Транспортная безопасность 2026 every 3 months. Most recently, Crewservices. Дельта тест 3.0 was updated on October 11, 2026 and Транспортная безопасность 2026 on October 6, 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.*