# Problem solver vs Physics AI

The clearest difference is in-app purchases: Problem solver at none against Physics AI's 2. Problem solver also leads on iOS requirement (8.0 vs 16.0). Physics AI's advantage is update cadence (fortnightly vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Physics AI sells 2 in-app purchases, starting at $5.99 per 7 days. Problem solver asks for nothing beyond the download.

Problem solver ships an update every 6 months, Physics AI fortnightly. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Problem solver | Physics AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (287 ratings)](https://appshunter.io/ios/app/physics-ai-problem-solver/id6474350204/reviews)** |
| Number of ratings | — | **287** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | — | Subscription |
| Size | 10 MB | 16 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fabio Giuliani](https://appshunter.io/developer/1333671865) | [Renaissance Apps LLC](https://appshunter.io/developer/1220536592) |

## What reviewers say

### Problem solver

[App page](https://appshunter.io/ios/app/problem-solver-mechanics/id1435700320)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics AI

[App page](https://appshunter.io/ios/app/physics-ai-problem-solver/id6474350204)

This app acts as a physics problem solver, offering step-by-step solutions for various physics questions. Users can upload or photograph problems, including diagrams and handwritten notes, to receive detailed mathematical explanations. It covers a wide range of physics topics for students at all levels.

**Highlights:** Photo upload for physics problems, Step-by-step mathematical solutions, Covers high school to doctoral research, Copy and share solutions, Handles multiple choice, word-based, and diagram problems

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics AI Weekly Sub | $5.99 | per 7 days |
| Physics AI - Yearly Sub | $34.99 | per year |

**What reviewers like**

- 👍 Helps with physics class
- 👍 Answers most physics questions correctly
- 👍 Useful for passing online classes
- 👍 Can answer many questions easily
- 👍 Helps understand physics concepts

**What reviewers complain about**

- 🐛 Incorrect answers provided
- 🐛 App shows same question repeatedly
- 🐛 Subscription issues (advertised as free)
- 🐛 Cannot cancel subscription
- 🐛 App keeps loading, doesn't solve

**Reported bugs**

- App shows same question repeatedly
- App not letting user cancel subscription
- App keeps loading instead of solving equations
- App keeps prompting for subscription when advertised as free

**Requested features**

- Ability to talk to AI model for better photo input
- Improvement in AI interaction for photo questions


## Frequently asked questions

### Is Problem solver free?

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

### Is Physics AI free?

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

### Do Problem solver or Physics AI have ads?

Both Problem solver and Physics AI show ads.

### Which is updated more often, Problem solver or Physics AI?

Problem solver ships an update every 6 months, and Physics AI fortnightly. Most recently, Problem solver was updated on October 4, 2026 and Physics AI on October 10, 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.*