# Hansen Ventilation vs DecorCalc

The clearest difference is iOS requirement: DecorCalc at 12.0 against Hansen Ventilation's 15.0. 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.

## The numbers

| Metric | Hansen Ventilation | DecorCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Size | 14 MB | 4 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EP spa](https://appshunter.io/developer/1688557966) | [Haohan Future](https://appshunter.io/developer/1777812341) |

## What reviewers say

### Hansen Ventilation

[App page](https://appshunter.io/ios/app/hansen-ventilation/id6503288430)

**Features:** macOS Compatibility

**In-app purchases:** none


### DecorCalc

[App page](https://appshunter.io/ios/app/decorcalc-pro/id6738497038)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hansen Ventilation free?

Hansen Ventilation is free to download, with no in-app purchases.

### Is DecorCalc free?

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

### Do Hansen Ventilation or DecorCalc have ads?

Neither Hansen Ventilation nor DecorCalc 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.*