# Physics vs Photronium

The clearest difference is rating: Photronium at 5.0 against Physics's 4.7. On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Physics sells 4 in-app purchases, starting at $1.99 per month and Photronium sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Photronium holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 20 and 10 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Physics ships an update every 2 months, Photronium monthly. Both last shipped on October 29, 2026.

## The numbers

| Metric | Physics | Photronium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (20 ratings)](https://appshunter.io/ios/app/physics-formulas-2026/id1495587959/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517/reviews)** |
| Number of ratings | **20** | 10 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 59 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Nikita Chernykh](https://appshunter.io/developer/1448243728) | [Hao Nguyen](https://appshunter.io/developer/1546383519) |

## What reviewers say

### Physics

[App page](https://appshunter.io/ios/app/physics-formulas-2026/id1495587959)

This interactive reference app provides a comprehensive collection of physics terms, formulas, and calculators. It's designed to help users prepare for tests and Olympiads by offering clear explanations, interactive tables, and internal search functionality.

**Highlights:** 280+ physics terms and definitions, 250+ categorized physics formulas, 180+ interactive calculators, Interactive tables for knowledge assimilation, Internal search for terms and formulas, Convenient in-app navigation

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional 1 Month | $1.99 | per month |
| Professional 6 Month | $6.99 | per 6 months |
| Professional 12 Month | $14.99 | per year |
| Professional - unlimited | $24.99 | one-time |


### 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 |


## Frequently asked questions

### Is Physics free?

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

### Is Photronium free?

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

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

Photronium is rated higher. Physics averages 4.7 out of 5 from 20 ratings, while Photronium averages 5.0 from 10 ratings.

### Do Physics or Photronium have ads?

Neither Physics nor Photronium shows ads.

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

Physics ships an update every 2 months, and Photronium monthly. Most recently, Physics was updated on October 29, 2026 and Photronium on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*