# AngularQM vs Learn Quaternions

The clearest difference is price: Learn Quaternions at Free against AngularQM's $4.99. Learn Quaternions also leads on iOS requirement (13.5 vs 26.4). AngularQM's advantage is rating (5.0 vs 2.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Learn Quaternions is free to download; AngularQM costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AngularQM 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 | AngularQM | Learn Quaternions |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/angularqm/id1319354337/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 | No |
| Update frequency | Every 49 months | — |
| Monetization | Paid | **Free** |
| Size | 5 MB | 2 MB |
| Requires iOS | 26.4 | **13.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gabriel Raffa](https://appshunter.io/developer/991109488) | [Grant Jarvis](https://appshunter.io/developer/1475033835) |

## What reviewers say

### AngularQM

[App page](https://appshunter.io/ios/app/angularqm/id1319354337)

This app helps quantum mechanics physicists quickly obtain matrix representations of angular momentum operators. It calculates matrices for J squared, the z component of J, and ladder operators for chosen total angular momentum values.

**Highlights:** Matrix representation of angular momentum operators, Calculates J squared matrices, Calculates Jz component matrices, Calculates ladder operator matrices (J+, J-), Supports various total angular momentum values (j), Visualizes matrix representations

**Features:** macOS Compatibility

**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 AngularQM free?

AngularQM costs $4.99, with no in-app purchases.

### Is Learn Quaternions free?

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

### Which has better reviews, AngularQM or Learn Quaternions?

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

### Do AngularQM or Learn Quaternions have ads?

Neither AngularQM nor Learn Quaternions 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.*