# Physics problem solver vs Photronium

The clearest difference is review sentiment: Photronium at 100% against Physics problem solver's 17%. Photronium also leads on rating (5.0 vs 1.0) and ads (none vs shown). Physics problem solver's advantage is in-app purchases (none vs 1) and iOS requirement (8.0 vs 16.4). On price and device support there is nothing between them.

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

Photronium holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 17% of Physics problem solver's written reviews are positive against 100% of Photronium's.

Physics problem solver ships an update every 6 months, Photronium monthly. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Physics problem solver | Photronium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/physics-problem-solver-motion/id1206106697/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/photronium-physics-equations/id1546383517/reviews)** |
| Number of ratings | 2 | **8** |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 10 MB | 59 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fabio Giuliani](https://appshunter.io/developer/1333671865) | [Hao Nguyen](https://appshunter.io/developer/1546383519) |

## What reviewers say

### Physics problem solver

[App page](https://appshunter.io/ios/app/physics-problem-solver-motion/id1206106697)

This application assists users in solving physics problems related to motion. It not only provides the solution but also explains the step-by-step process. It supports various motion types and complex data inputs, with the ability to save solved problems.

**Highlights:** Solves physics problems on motion, Provides step-by-step solution process, Supports uniform linear motion, Supports uniformly accelerated linear motion, Supports uniform circular motion, Supports simple harmonic motion, Handles complex data inputs, Saves solved problems

**Features:** macOS Compatibility

**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 problem solver free?

Physics problem solver is free to download, with no in-app purchases.

### Is Photronium free?

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

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

Photronium is rated higher. Physics problem solver averages 1.0 out of 5 from 2 ratings, while Photronium averages 5.0 from 8 ratings.

### Do Physics problem solver or Photronium have ads?

Physics problem solver shows ads; Photronium does not.

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

Physics problem solver ships an update every 6 months, and Photronium monthly. Most recently, Physics problem solver was updated on September 19, 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.*