# iPennyVibration vs Matterlyzer

The clearest difference is iOS requirement: iPennyVibration at 16.1 against Matterlyzer's 18.4. On price, ads, 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 | iPennyVibration | Matterlyzer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Weekly |
| Size | 2 MB | 11 MB |
| Requires iOS | **16.1** | 18.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [PoChun Chang](https://appshunter.io/developer/1620672722) | [融 黄](https://appshunter.io/developer/1515444251) |

## What reviewers say

### iPennyVibration

[App page](https://appshunter.io/ios/app/ipennyvibration/id1668529628)

**In-app purchases:** none


### Matterlyzer

[App page](https://appshunter.io/ios/app/matterlyzer/id6761119189)

**In-app purchases:** none


## Frequently asked questions

### Is iPennyVibration free?

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

### Is Matterlyzer free?

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

### Do iPennyVibration or Matterlyzer have ads?

Neither iPennyVibration nor Matterlyzer 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.*