# Physics++ vs Auto Mechanic Bob

The clearest difference is review sentiment: Physics++ at 68% against Auto Mechanic Bob's 0%. Physics++ also leads on rating (4.1 vs 1.0) and update cadence (every 5 weeks vs every 103 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Physics++ costs $0.99 and Auto Mechanic Bob $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Physics++ holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Physics++ has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 68% of Physics++'s written reviews are positive against 0% of Auto Mechanic Bob's.

Physics++ ships an update every 5 weeks, Auto Mechanic Bob every 103 months. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Physics++ | Auto Mechanic Bob |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.1 (10 ratings)](https://appshunter.io/ios/app/physics-plus-plus/id325836855/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/auto-mechanic-bob-engines/id870140455/reviews) |
| Number of ratings | **10** | 1 |
| Positive reviews | **68.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 103 months |
| Monetization | Paid | Paid |
| Size | 75 MB | 20 MB |
| Requires iOS | 14.5 | **13.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Dominik Hauser](https://appshunter.io/developer/325836858) | [Michael OMassey](https://appshunter.io/developer/467921979) |

## 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


### Auto Mechanic Bob

[App page](https://appshunter.io/ios/app/auto-mechanic-bob-engines/id870140455)

Explore different types of engines with interactive animations and sounds. Test your knowledge with quizzes and practice diagnosing and fixing engine problems to earn certificates.

**Highlights:** Interactive engine animations, Engine repair challenges, Extensive engine quiz, Starting system information, Engine forums, Printable certificates

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

**In-app purchases:** none


## Frequently asked questions

### Is Physics++ free?

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

### Is Auto Mechanic Bob free?

Auto Mechanic Bob costs $0.99, with no in-app purchases.

### Which has better reviews, Physics++ or Auto Mechanic Bob?

Physics++ is rated higher. Physics++ averages 4.1 out of 5 from 10 ratings, while Auto Mechanic Bob averages 1.0 from 1 ratings.

### Do Physics++ or Auto Mechanic Bob have ads?

Neither Physics++ nor Auto Mechanic Bob shows ads.

### Which is updated more often, Physics++ or Auto Mechanic Bob?

Physics++ ships an update every 5 weeks, and Auto Mechanic Bob every 103 months. Most recently, Physics++ was updated on October 26, 2026 and Auto Mechanic Bob on October 20, 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.*