# AngularQM vs Description

The clearest difference is price: Description at Free against AngularQM's $4.99. Description also leads on update cadence (every 4 weeks vs every 49 months) and iOS requirement (11.0 vs 26.4). AngularQM's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

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

AngularQM ships an update every 49 months, Description every 4 weeks. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | AngularQM | Description |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/angularqm/id1319354337/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 49 months | **Every 4 weeks** |
| Monetization | Paid | — |
| Size | 5 MB | 73 MB |
| Requires iOS | 26.4 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gabriel Raffa](https://appshunter.io/developer/991109488) | [MUTSUMI SUZUKI](https://appshunter.io/developer/1612946812) |

## 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


### Description

[App page](https://appshunter.io/ios/app/description-education-support/id6458877320)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AngularQM free?

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

### Is Description free?

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

### Do AngularQM or Description have ads?

Description shows ads; AngularQM does not.

### Which is updated more often, AngularQM or Description?

AngularQM ships an update every 49 months, and Description every 4 weeks. Most recently, AngularQM was updated on October 14, 2026 and Description on October 5, 2026.

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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.*