# 3D Rotations and Quaternions vs Learn Poisson Binomial Normal

The clearest difference is price: 3D Rotations and Quaternions at Free against Learn Poisson Binomial Normal's $0.99. 3D Rotations and Quaternions also leads on iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

3D Rotations and Quaternions is free to download; Learn Poisson Binomial Normal costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 3D Rotations and Quaternions | Learn Poisson Binomial Normal |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 1 MB | 7 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuri Morozov](https://appshunter.io/developer/1582368813) | [Laurence Stone](https://appshunter.io/developer/1702094763) |

## What reviewers say

### 3D Rotations and Quaternions

[App page](https://appshunter.io/ios/app/3d-rotations-and-quaternions/id6618113140)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn Poisson Binomial Normal

[App page](https://appshunter.io/ios/app/learn-poisson-binomial-normal/id6746050112)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3D Rotations and Quaternions free?

3D Rotations and Quaternions is free to download, with no in-app purchases.

### Is Learn Poisson Binomial Normal free?

Learn Poisson Binomial Normal costs $0.99, with no in-app purchases.

### Do 3D Rotations and Quaternions or Learn Poisson Binomial Normal have ads?

Neither 3D Rotations and Quaternions nor Learn Poisson Binomial Normal 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.*