# Cymatica vs Auto Scratch

The clearest difference is in-app purchases: Auto Scratch at none against Cymatica's 4. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Cymatica sells 4 in-app purchases, starting at $3.99 per month. Auto Scratch asks for nothing beyond the download.

## The numbers

| Metric | Cymatica | Auto Scratch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (28 ratings)](https://appshunter.io/ios/app/cymatica-music-visualizer/id6748863721/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 13 MB |
| Requires iOS | 18.5 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shridhar Gupta](https://appshunter.io/developer/386865394) | [keiji shibuta](https://appshunter.io/developer/1879167349) |

## What reviewers say

### Cymatica

[App page](https://appshunter.io/ios/app/cymatica-music-visualizer/id6748863721)

Explore the universe's hidden mathematics by transforming sound into mesmerizing geometric sand patterns. This interactive physics simulation brings scientific principles to life with real-time calculations and haptic feedback.

**Highlights:** Interactive sand pattern simulation, Sound wave visualization, Haptic feedback, Real-time frequency calculations, Adjustable pattern complexity, Pattern saving, Dark mode

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cymatica Pro | $3.99 | per month |
| Cymatica Pro | $19.99 | per year |
| Unlock Sounds | $4.99 | one-time |
| Cymatica Pro Lifetime | $24.99 | one-time |


### Auto Scratch

[App page](https://appshunter.io/ios/app/auto-scratch/id6781161324)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cymatica free?

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

### Is Auto Scratch free?

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

### Do Cymatica or Auto Scratch have ads?

Neither Cymatica nor Auto Scratch shows ads.

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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.*