# Промышленная безопасность Б1.2 vs Экологическая безопасность 26

The clearest difference is price: Экологическая безопасность 26 at Free against Промышленная безопасность Б1.2's $1.99. Промышленная безопасность Б1.2's advantage is in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

Экологическая безопасность 26 is free to download; Промышленная безопасность Б1.2 costs $1.99 up front. Экологическая безопасность 26 sells 2 one-off in-app purchases. Промышленная безопасность Б1.2 asks for nothing beyond the download.

Промышленная безопасность Б1.2 ships an update every 8 months, Экологическая безопасность 26 every 5 months. The most recent releases landed on June 25, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Промышленная безопасность Б1.2 | Экологическая безопасность 26 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 15 MB | 21 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Andrey Andreyev](https://appshunter.io/developer/1418253369) | [Alisa Potapova](https://appshunter.io/developer/666897984) |

## What reviewers say

### Промышленная безопасность Б1.2

[App page](https://appshunter.io/ios/app/12/id1538194036)

Prepare for industrial safety exams with this offline test simulator. It offers multiple modes for studying questions, practicing without time limits, and simulating real exam conditions. Track your progress and work on your mistakes to ensure readiness.

**Highlights:** Offline access to tests, Study questions with correct answers, Unlimited practice mode, Exam simulation mode, Error correction feature, Multiple study modes

**Features:** macOS Compatibility

**In-app purchases:** none


### Экологическая безопасность 26

[App page](https://appshunter.io/ios/app/26/id1634385511)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ЭКГ 112.30 | $0.99 | one-time |
| ЭКГ 1228.17 | $0.99 | one-time |


## Frequently asked questions

### Is Промышленная безопасность Б1.2 free?

Промышленная безопасность Б1.2 costs $1.99, with no in-app purchases.

### Is Экологическая безопасность 26 free?

Экологическая безопасность 26 is free to download, with in-app purchases available.

### Do Промышленная безопасность Б1.2 or Экологическая безопасность 26 have ads?

Neither Промышленная безопасность Б1.2 nor Экологическая безопасность 26 shows ads.

### Which is updated more often, Промышленная безопасность Б1.2 or Экологическая безопасность 26?

Промышленная безопасность Б1.2 ships an update every 8 months, and Экологическая безопасность 26 every 5 months. Most recently, Промышленная безопасность Б1.2 was updated on June 25, 2026 and Экологическая безопасность 26 on September 9, 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.*