# iPhysics™ Pro vs Photronium

The clearest difference is review sentiment: Photronium at 100% against iPhysics™ Pro's 46%. Photronium also leads on price (Free vs $2.99) and rating (5.0 vs 3.1). iPhysics™ Pro's advantage is in-app purchases (none vs 1) and iOS requirement (9.0 vs 16.4). On ratings volume, ads, monetization model and device support there is nothing between them.

Photronium is free to download; iPhysics™ Pro costs $2.99 up front. Photronium sells 1 one-off in-app purchase. iPhysics™ Pro asks for nothing beyond the download.

Photronium holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 19 and 8 respectively. Written reviews point the same way: 46% of iPhysics™ Pro's written reviews are positive against 100% of Photronium's.

iPhysics™ Pro ships an update every 7 months, Photronium monthly. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | iPhysics™ Pro | Photronium |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.1 (19 ratings)](https://appshunter.io/ios/app/iphysics-pro/id717125958/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517/reviews)** |
| Number of ratings | **19** | 8 |
| Positive reviews | 45.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 104 MB | 59 MB |
| Requires iOS | **9.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Antonio Giarrusso](https://appshunter.io/developer/1433879699) | [Hao Nguyen](https://appshunter.io/developer/1546383519) |

## What reviewers say

### iPhysics™ Pro

[App page](https://appshunter.io/ios/app/iphysics-pro/id717125958)

This app serves as a personal physics tutor, offering clear explanations for over 70 topics to help students pass exams. The Pro version expands content to over 120 topics, includes interactive quizzes, and provides step-by-step solved examples for problem-solving.

**Highlights:** Over 70 physics topics explained, Clear and simple explanations, Effective synthesis of formulas and theorems, Advanced search algorithm, Over 120 topics in Pro version, Interactive multiple choice quizzes, Step-by-step solved examples

**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 iPhysics™ Pro free?

iPhysics™ Pro costs $2.99, with no in-app purchases.

### Is Photronium free?

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

### Which has better reviews, iPhysics™ Pro or Photronium?

Photronium is rated higher. iPhysics™ Pro averages 3.1 out of 5 from 19 ratings, while Photronium averages 5.0 from 8 ratings.

### Do iPhysics™ Pro or Photronium have ads?

Neither iPhysics™ Pro nor Photronium shows ads.

### Which is updated more often, iPhysics™ Pro or Photronium?

iPhysics™ Pro ships an update every 7 months, and Photronium monthly. Most recently, iPhysics™ Pro was updated on October 20, 2026 and Photronium on October 6, 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.*