# System Sound vs ShelfLife Scan

The clearest difference is ads: ShelfLife Scan at none against System Sound's shown. On price, in-app purchases, device support and iOS requirement 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 | System Sound | ShelfLife Scan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Size | 36 MB | 6 MB |
| Requires iOS | 15.8.3 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [OEZGE BALCI](https://appshunter.io/developer/6799678114) |

## What reviewers say

### System Sound

[App page](https://appshunter.io/ios/app/system-sound/id6504702118)

**Features:** macOS Compatibility

**In-app purchases:** none


### ShelfLife Scan

[App page](https://appshunter.io/ios/app/shelflife-scan/id6799678112)

**In-app purchases:** none


## Frequently asked questions

### Is System Sound free?

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

### Is ShelfLife Scan free?

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

### Do System Sound or ShelfLife Scan have ads?

System Sound shows ads; ShelfLife Scan 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.*