# Photronium vs MARVLS

The clearest difference is rating: Photronium at 5.0 against MARVLS's 1.0. Photronium also leads on review sentiment (100% vs 67%) and ratings volume (8 vs 1). MARVLS's advantage is in-app purchases (none vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Photronium sells 1 one-off in-app purchase. MARVLS asks for nothing beyond the download.

Photronium holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Photronium has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Photronium's written reviews are positive against 67% of MARVLS's.

Photronium ships an update monthly, MARVLS every 4 weeks. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Photronium | MARVLS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/marvls-quantum-computing/id6740221029/reviews) |
| Number of ratings | **8** | 1 |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 59 MB | 168 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hao Nguyen](https://appshunter.io/developer/1546383519) | [Michele McColgan](https://appshunter.io/developer/1532617986) |

## 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 |


### MARVLS

[App page](https://appshunter.io/ios/app/marvls-quantum-computing/id6740221029)

Explore quantum computing concepts through interactive augmented reality models. Requires a Merge Cube to visualize and manipulate topics like superposition and entanglement. Navigate through various educational modules to deepen your understanding.

**Highlights:** Augmented reality visualization, Interactive quantum concepts, Merge Cube integration, Topics: superposition, entanglement, qubits, Logic gates visualization, Nuclear and electron spin models

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Photronium free?

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

### Is MARVLS free?

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

### Which has better reviews, Photronium or MARVLS?

Photronium is rated higher. Photronium averages 5.0 out of 5 from 8 ratings, while MARVLS averages 1.0 from 1 ratings.

### Do Photronium or MARVLS have ads?

Neither Photronium nor MARVLS shows ads.

### Which is updated more often, Photronium or MARVLS?

Photronium ships an update monthly, and MARVLS every 4 weeks. Most recently, Photronium was updated on September 18, 2026 and MARVLS on September 9, 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.*