# Regex Playground vs Sound function check

The clearest difference is ads: Regex Playground 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 | Regex Playground | Sound function check |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Size | 2 MB | 8 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nirav Parmar](https://appshunter.io/developer/1596410760) | [Yasushi Tauchi](https://appshunter.io/developer/1819284921) |

## What reviewers say

### Regex Playground

[App page](https://appshunter.io/ios/app/regex-playground/id6765586092)

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

**In-app purchases:** none


### Sound function check

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

**In-app purchases:** none


## Frequently asked questions

### Is Regex Playground free?

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

### Is Sound function check free?

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

### Do Regex Playground or Sound function check have ads?

Sound function check shows ads; Regex Playground 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.*