# QR Code Inspector vs Decibel Meter°

The clearest difference is ads: QR Code Inspector at none against Decibel Meter°'s shown. Decibel Meter°'s advantage is iOS requirement (13.0 vs 18.6). On price, 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 | QR Code Inspector | Decibel Meter° |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 25 months | — |
| Size | 7 MB | 66 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Easy Simple Smart](https://appshunter.io/developer/1517332870) | [Zancore Systems s.r.o.](https://appshunter.io/developer/1581624529) |

## What reviewers say

### QR Code Inspector

[App page](https://appshunter.io/ios/app/qr-code-inspector/id6474573609)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Decibel Meter°

[App page](https://appshunter.io/ios/app/decibel-meter/id6759850836)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QR Code Inspector free?

QR Code Inspector is free to download, with no in-app purchases.

### Is Decibel Meter° free?

Decibel Meter° is free to download, with no in-app purchases.

### Do QR Code Inspector or Decibel Meter° have ads?

Decibel Meter° shows ads; QR Code Inspector does not.

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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.*