# Virtual PetroLab vs Промышленная безопасность Б2.1

The clearest difference is price: Virtual PetroLab at Free against Промышленная безопасность Б2.1's $1.99. Virtual PetroLab also leads on iOS requirement (9.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

Virtual PetroLab is free to download; Промышленная безопасность Б2.1 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Virtual PetroLab | Промышленная безопасность Б2.1 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Monetization | — | Paid |
| Size | 281 MB | 14 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Natalia Shelyago](https://appshunter.io/developer/1618907003) | [Andrey Andreyev](https://appshunter.io/developer/1418253369) |

## What reviewers say

### Virtual PetroLab

[App page](https://appshunter.io/ios/app/virtual-petrolab/id1479461279)

**Features:** macOS Compatibility

**In-app purchases:** none


### Промышленная безопасность Б2.1

[App page](https://appshunter.io/ios/app/21/id1528305009)

Prepare for certification exams in oil and gas industry operations with this comprehensive test simulator. It offers various training modes, including practice tests and an exam simulation, all offline.

**Highlights:** Test simulator for oil and gas operations, Offline access, Multiple training modes, Exam simulation, Error correction feature, Official test questions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Virtual PetroLab free?

Virtual PetroLab is free to download, with no in-app purchases.

### Is Промышленная безопасность Б2.1 free?

Промышленная безопасность Б2.1 costs $1.99, with no in-app purchases.

### Do Virtual PetroLab or Промышленная безопасность Б2.1 have ads?

Neither Virtual PetroLab nor Промышленная безопасность Б2.1 shows ads.

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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.*