# Промышленная безопасность А1 . vs Онтрэк Лайф

The clearest difference is price: Онтрэк Лайф at Free against Промышленная безопасность А1 .'s $2.99. Промышленная безопасность А1 .'s advantage is update cadence (every 4 months vs every 18 months) and device support. On in-app purchases there is nothing between them.

Онтрэк Лайф is free to download; Промышленная безопасность А1 . costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Промышленная безопасность А1 . ships an update every 4 months, Онтрэк Лайф every 18 months. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Промышленная безопасность А1 . | Онтрэк Лайф |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 4 months** | Every 18 months |
| Monetization | Paid | — |
| Size | 17 MB | 55 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 12+ | 17+ |
| Developer | [Alisa Potapova](https://appshunter.io/developer/666897984) | [DIALOG, UCH](https://appshunter.io/developer/1464922831) |

## What reviewers say

### Промышленная безопасность А1 .

[App page](https://appshunter.io/ios/app/1/id1577373433)

Prepare for the "A.1 Fundamentals of Industrial Safety" certification exam with this app. It offers study modes, practice tests, and error analysis based on official Rostekhnadzor questions updated for 2026.

**Highlights:** Study mode with answers and comments, Exam simulation with random questions, Marathon mode for full or partial testing, Error tracking and review, Favorite questions, Detailed statistics, Search functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### Онтрэк Лайф

[App page](https://appshunter.io/ios/app/id6445975499)

**In-app purchases:** none


## Frequently asked questions

### Is Промышленная безопасность А1 . free?

Промышленная безопасность А1 . costs $2.99, with no in-app purchases.

### Is Онтрэк Лайф free?

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

### Which is updated more often, Промышленная безопасность А1 . or Онтрэк Лайф?

Промышленная безопасность А1 . ships an update every 4 months, and Онтрэк Лайф every 18 months. Most recently, Промышленная безопасность А1 . was updated on October 1, 2026 and Онтрэк Лайф on September 29, 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.*