# Mechanical Engineering Book vs Physics Solver

The clearest difference is price: Physics Solver at Free against Mechanical Engineering Book's $1.99. Physics Solver also leads on update cadence (every 3 weeks vs every 11 months). Mechanical Engineering Book's advantage is in-app purchases (none vs 2) and iOS requirement (10.0 vs 17.0). On rating, ratings volume, ads and device support there is nothing between them.

Physics Solver is free to download; Mechanical Engineering Book costs $1.99 up front. Physics Solver sells 2 in-app purchases, starting at $9.99 per 7 days. Mechanical Engineering Book asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Mechanical Engineering Book against 4.8 for Physics Solver. Both are backed by a comparable volume of ratings — 12 and 19 respectively.

Mechanical Engineering Book ships an update every 11 months, Physics Solver every 3 weeks. The most recent releases landed on September 27, 2026 and July 30, 2026 respectively.

## The numbers

| Metric | Mechanical Engineering Book | Physics Solver |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.7 (12 ratings)](https://appshunter.io/ios/app/mechanical-engineering-book/id6448752936/reviews) | **[4.8 (19 ratings)](https://appshunter.io/ios/app/physics-solver-ai-study/id6743952927/reviews)** |
| Number of ratings | 12 | **19** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 38 MB | 13 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Haroon Khalil](https://appshunter.io/developer/1685448939) | [Liberace Pte. Ltd.](https://appshunter.io/developer/1851362112) |

## What reviewers say

### Mechanical Engineering Book

[App page](https://appshunter.io/ios/app/mechanical-engineering-book/id6448752936)

This app provides a comprehensive guide to mechanical engineering, covering fundamental concepts, key terms, and essential formulas. It's designed for students and professionals to deepen their understanding of machine mechanisms and engineering principles.

**Highlights:** Learn mechanical engineering principles, Understand machine mechanisms, Access engineering formulas and equations, Explore engineering facts, Covers thermodynamics, materials science, and more, Designed for professionals and students

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

**In-app purchases:** none


### Physics Solver

[App page](https://appshunter.io/ios/app/physics-solver-ai-study/id6743952927)

This AI-powered app provides step-by-step solutions and detailed explanations for a wide range of physics topics. It helps students and professionals deepen their understanding of complex concepts with an intuitive interface and advanced algorithms.

**Highlights:** Step-by-step physics solutions, Detailed explanations, Covers various physics branches, Formula calculators, Unit conversions, Kinematics solvers, Circuit analyzers

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $9.99 | per 7 days |
| Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Mechanical Engineering Book free?

Mechanical Engineering Book costs $1.99, with no in-app purchases.

### Is Physics Solver free?

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

### Which has better reviews, Mechanical Engineering Book or Physics Solver?

Physics Solver is rated higher. Mechanical Engineering Book averages 4.7 out of 5 from 12 ratings, while Physics Solver averages 4.8 from 19 ratings.

### Do Mechanical Engineering Book or Physics Solver have ads?

Neither Mechanical Engineering Book nor Physics Solver shows ads.

### Which is updated more often, Mechanical Engineering Book or Physics Solver?

Mechanical Engineering Book ships an update every 11 months, and Physics Solver every 3 weeks. Most recently, Mechanical Engineering Book was updated on September 27, 2026 and Physics Solver on July 30, 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.*