# Photronium vs Quantum Computing

The clearest difference is update cadence: Quantum Computing at daily against Photronium's monthly. Quantum Computing also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Photronium sells 1 one-off in-app purchase and Quantum Computing sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Photronium ships an update monthly, Quantum Computing daily. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Photronium | Quantum Computing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 2 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Hao Nguyen](https://appshunter.io/developer/1546383519) | [Everyware Apps](https://appshunter.io/developer/718530491) |

## What reviewers say

### Photronium

[App page](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517)

Access over 360 physics equations with clear explanations and powerful search tools. Test your knowledge with custom quizzes and learn offline anywhere, anytime. This educational reference is designed for learners of all levels.

**Highlights:** 360+ physics equations, Offline access, Intelligent Search, Symbol Search, Customizable quizzes, Bookmarking

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multicolored Bookmarks | $0.99 | one-time |


### Quantum Computing

[App page](https://appshunter.io/ios/app/quantum-computing/id6523414226)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium features | $3.99 | one-time |


## Frequently asked questions

### Is Photronium free?

Photronium is free to download, with in-app purchases available.

### Is Quantum Computing free?

Quantum Computing is free to download, with in-app purchases available.

### Do Photronium or Quantum Computing have ads?

Neither Photronium nor Quantum Computing shows ads.

### Which is updated more often, Photronium or Quantum Computing?

Photronium ships an update monthly, and Quantum Computing daily. Most recently, Photronium was updated on October 23, 2026 and Quantum Computing on October 15, 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.*