# Physics++ vs Photronium

The clearest difference is price: Photronium at Free against Physics++'s $0.99. Photronium also leads on rating (5.0 vs 3.9) and review sentiment (100% vs 68%). Physics++'s advantage is in-app purchases (none vs 1) and iOS requirement (14.5 vs 16.4). On ratings volume, update cadence, ads and device support there is nothing between them.

Photronium is free to download; Physics++ costs $0.99 up front. Photronium sells 1 one-off in-app purchase. Physics++ asks for nothing beyond the download.

Photronium holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 8 and 8 respectively. Written reviews point the same way: 68% of Physics++'s written reviews are positive against 100% of Photronium's.

Physics++ ships an update every 5 weeks, Photronium monthly. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Physics++ | Photronium |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.9 (8 ratings)](https://appshunter.io/ios/app/physics-plus-plus/id325836855/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517/reviews)** |
| Number of ratings | 8 | 8 |
| Positive reviews | 68.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 75 MB | 59 MB |
| Requires iOS | **14.5** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dominik Hauser](https://appshunter.io/developer/325836858) | [Hao Nguyen](https://appshunter.io/developer/1546383519) |

## What reviewers say

### Physics++

[App page](https://appshunter.io/ios/app/physics-plus-plus/id325836855)

This app provides a comprehensive collection of over 120 physics formulas across various topics like mechanics, relativity, and thermodynamics. It includes a search function, unit conversions, and physics constants, with many formulas featuring integrated calculators for easy problem-solving.

**Highlights:** 120+ physics formulas, Mechanics, relativity, thermodynamics coverage, Search function for formulas, Integrated formula calculators, Physics constants and unit conversions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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++ costs $0.99, with no in-app purchases.

### 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 3.9 out of 5 from 8 ratings, while Photronium averages 5.0 from 8 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 5 weeks, and Photronium monthly. Most recently, Physics++ was updated on September 21, 2026 and Photronium on September 18, 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.*