# Photronium vs Atomizer AR

The clearest difference is rating: Photronium at 5.0 against Atomizer AR's 4.0. Photronium also leads on ratings volume (10 vs 3). Atomizer AR's advantage is update cadence (every 10 days vs monthly) and device support (6 vs 2). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Photronium sells 1 one-off in-app purchase and Atomizer AR sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Photronium holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Photronium ships an update monthly, Atomizer AR every 10 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Photronium | Atomizer AR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/atomizer-ar-quantum-chemistry/id6449015706/reviews) |
| Number of ratings | **10** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 59 MB | 137 MB |
| Requires iOS | 16.4 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Hao Nguyen](https://appshunter.io/developer/1546383519) | [Wonmo Seong](https://appshunter.io/developer/1625011193) |

## 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 |


### Atomizer AR

[App page](https://appshunter.io/ios/app/atomizer-ar-quantum-chemistry/id6449015706)

Visualize atomic and molecular orbitals in 3D, render electron density clouds, and explore molecules in augmented reality. Calculate molar mass, balance equations, and sketch molecules in 2D.

**Highlights:** 3D atomic and molecular orbital visualization, Electron density cloud rendering, WebXR augmented reality exploration, Molecule control via gyroscope, Molar mass calculation, Equation balancing and stoichiometry, 2D molecule sketching

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Californium Pass | $4.99 | per month |
| Einsteinium Pass | $12.99 | per month |
| Californium Yearly | $39.99 | per year |
| Einsteinium Yearly | $99.00 | per year |


## Frequently asked questions

### Is Photronium free?

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

### Is Atomizer AR free?

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

### Which has better reviews, Photronium or Atomizer AR?

Photronium is rated higher. Photronium averages 5.0 out of 5 from 10 ratings, while Atomizer AR averages 4.0 from 3 ratings.

### Do Photronium or Atomizer AR have ads?

Neither Photronium nor Atomizer AR shows ads.

### Which is updated more often, Photronium or Atomizer AR?

Photronium ships an update monthly, and Atomizer AR every 10 days. Most recently, Photronium was updated on November 3, 2026 and Atomizer AR on November 3, 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.*