# Mechanical Pendulums vs Learn Quaternions

The clearest difference is rating: Mechanical Pendulums at 5.0 against Learn Quaternions's 2.0. Learn Quaternions's advantage is device support and iOS requirement (13.5 vs 15.0). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mechanical Pendulums holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | Mechanical Pendulums | Learn Quaternions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mechanical-pendulums/id377376047/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/learn-quaternions/id1560497809/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Monetization | Free | Free |
| Size | 0 MB | 2 MB |
| Requires iOS | 15.0 | **13.5** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ManneTroll Solutions](https://appshunter.io/developer/313743954) | [Grant Jarvis](https://appshunter.io/developer/1475033835) |

## What reviewers say

### Mechanical Pendulums

[App page](https://appshunter.io/ios/app/mechanical-pendulums/id377376047)

Explore the complex and often chaotic motion of coupled pendulums. Interact with double, triple, quadruple, and even octuple pendulums, visualizing their behavior in 2D or 3D.

**Highlights:** N-tuple pendulum simulations, Interactive motion control, Multiple pendulum configurations, Quartz and OpenGL visualization, Derived equations of motion, 4th order Runge-Kutta solver

**In-app purchases:** none


### Learn Quaternions

[App page](https://appshunter.io/ios/app/learn-quaternions/id1560497809)

Explore the abstract mathematical concept of quaternions through an interactive, visual experience. Manipulate rotation angles and axes with sliders and touch gestures to understand their behavior in a fun and engaging way.

**Highlights:** Visual quaternion exploration, Interactive sliders for rotation, 3D scene manipulation via touch, Fun and engaging learning method, Built with RealityKit

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Pendulums free?

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

### Is Learn Quaternions free?

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

### Which has better reviews, Mechanical Pendulums or Learn Quaternions?

Mechanical Pendulums is rated higher. Mechanical Pendulums averages 5.0 out of 5 from 1 ratings, while Learn Quaternions averages 2.0 from 1 ratings.

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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.*