# Automobile Engineering Book vs Mechanical Engineering Book

Automobile Engineering Book and Mechanical Engineering Book both sit at 4.6 stars, but that hides the real split: 100% of Automobile Engineering Book's written reviews are positive against 0% of Mechanical Engineering Book's. Automobile Engineering Book also leads on price (Free vs $1.99) and update cadence (every 5 weeks vs every 11 months). Mechanical Engineering Book's advantage is in-app purchases (none vs 5) and iOS requirement (10.0 vs 14.0). On rating, ratings volume, ads and device support there is nothing between them.

Automobile Engineering Book is free to download; Mechanical Engineering Book costs $1.99 up front. Automobile Engineering Book sells 4 in-app purchases, starting at $2.99 per 3 months. Mechanical Engineering Book asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Automobile Engineering Book against 4.7 for Mechanical Engineering Book. Both are backed by a comparable volume of ratings — 9 and 12 respectively. Written reviews are what separate them: 100% of Automobile Engineering Book's written reviews are positive against 0% of Mechanical Engineering Book's.

Automobile Engineering Book ships an update every 5 weeks, Mechanical Engineering Book every 11 months. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Automobile Engineering Book | Mechanical Engineering Book |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/automobile-engineering-book/id1583758958/reviews) | **[4.7 (12 ratings)](https://appshunter.io/ios/app/mechanical-engineering-book/id6448752936/reviews)** |
| Number of ratings | 9 | **12** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 11 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 136 MB | 38 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Pereshein](https://appshunter.io/developer/1041461209) | [Haroon Khalil](https://appshunter.io/developer/1685448939) |

## What reviewers say

### Automobile Engineering Book

[App page](https://appshunter.io/ios/app/automobile-engineering-book/id1583758958)

This app provides a comprehensive yet accessible guide to automobile engineering. It covers basic vehicle structure, common malfunctions, and maintenance rules in a clear, engaging format with ample illustrations. Ideal for novice drivers and anyone seeking to understand their car better.

**Highlights:** Basic vehicle structure information, Common malfunctions and solutions, Operation and maintenance rules, Simple language explanations of car systems, Extensive illustrative material

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | per 3 months |
| Full version for three months | $2.99 | one-time |
| Full version for one year | $4.99 | one-time |
| Full version forever | $6.99 | one-time |


### 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


## Frequently asked questions

### Is Automobile Engineering Book free?

Automobile Engineering Book is free to download, with in-app purchases available.

### Is Mechanical Engineering Book free?

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

### Which has better reviews, Automobile Engineering Book or Mechanical Engineering Book?

Mechanical Engineering Book is rated higher. Automobile Engineering Book averages 4.6 out of 5 from 9 ratings, while Mechanical Engineering Book averages 4.7 from 12 ratings.

### Do Automobile Engineering Book or Mechanical Engineering Book have ads?

Neither Automobile Engineering Book nor Mechanical Engineering Book shows ads.

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

Automobile Engineering Book ships an update every 5 weeks, and Mechanical Engineering Book every 11 months. Most recently, Automobile Engineering Book was updated on October 16, 2026 and Mechanical Engineering Book on October 1, 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.*