# AutoQR vs Ventilation Systems

The clearest difference is in-app purchases: Ventilation Systems at none against AutoQR's 4. AutoQR's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. AutoQR sells 4 in-app purchases, starting at $2.99 per month. Ventilation Systems asks for nothing beyond the download.

## The numbers

| Metric | AutoQR | Ventilation Systems |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Size | 51 MB | 222 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [Vadym Bohdan](https://appshunter.io/developer/1574094301) | [Artem Stoliarov](https://appshunter.io/developer/1439013528) |

## What reviewers say

### AutoQR

[App page](https://appshunter.io/ios/app/autoqr-qr-code-scanner/id1611216740)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Code Scanner Monthly | $2.99 | per month |
| QR Code Scanner Weekly | $4.99 | per 7 days |
| QR Code Scanner Yearly | $24.99 | per year |
| AutoQR Premium | $8.99 | one-time |


### Ventilation Systems

[App page](https://appshunter.io/ios/app/ventilation-systems-ar/id6471626322)

**In-app purchases:** none


## Frequently asked questions

### Is AutoQR free?

AutoQR is free to download, with in-app purchases available.

### Is Ventilation Systems free?

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

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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.*