# Sound function check vs JSONPad

The clearest difference is ads: JSONPad at none against Sound function check'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 | Sound function check | JSONPad |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 2 days |
| Size | 8 MB | 1 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yasushi Tauchi](https://appshunter.io/developer/1819284921) | [Colin Schmale](https://appshunter.io/developer/1669237798) |

## What reviewers say

### Sound function check

[App page](https://appshunter.io/ios/app/sound-function-check/id6774851912)

**In-app purchases:** none


### JSONPad

[App page](https://appshunter.io/ios/app/jsonpad-json-viewer-and-editor/id6808022749)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sound function check free?

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

### Is JSONPad free?

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

### Do Sound function check or JSONPad have ads?

Sound function check shows ads; JSONPad 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.*