# ИМ. Инженер vs Строительный калькулятор SO

The clearest difference is update cadence: ИМ. Инженер at weekly against Строительный калькулятор SO's monthly. Строительный калькулятор SO's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ИМ. Инженер ships an update weekly, Строительный калькулятор SO monthly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ИМ. Инженер | Строительный калькулятор SO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 17 MB | 23 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Manasin Ivan](https://appshunter.io/developer/1826578516) | [Maksim Maltsev](https://appshunter.io/developer/1872080568) |

## What reviewers say

### ИМ. Инженер

[App page](https://appshunter.io/ios/app/id6748615607)

**In-app purchases:** none


### Строительный калькулятор SO

[App page](https://appshunter.io/ios/app/so/id6758302848)

**In-app purchases:** none


## Frequently asked questions

### Is ИМ. Инженер free?

ИМ. Инженер is free to download, with no in-app purchases.

### Is Строительный калькулятор SO free?

Строительный калькулятор SO is free to download, with no in-app purchases.

### Do ИМ. Инженер or Строительный калькулятор SO have ads?

Neither ИМ. Инженер nor Строительный калькулятор SO shows ads.

### Which is updated more often, ИМ. Инженер or Строительный калькулятор SO?

ИМ. Инженер ships an update weekly, and Строительный калькулятор SO monthly. Most recently, ИМ. Инженер was updated on October 25, 2026 and Строительный калькулятор SO on October 31, 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.*