# Photronium vs Bernstein

The clearest difference is in-app purchases: Bernstein at none against Photronium's 1. On price, ads, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Photronium | Bernstein |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 0 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hao Nguyen](https://appshunter.io/developer/1546383519) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## 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 |


### Bernstein

[App page](https://appshunter.io/ios/app/bernstein-vazirani-algorithm/id6457204574)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Photronium free?

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

### Is Bernstein free?

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

### Do Photronium or Bernstein have ads?

Neither Photronium nor Bernstein 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.*