# Automobile Engineering Book vs Material Engineering

The clearest difference is rating: Material Engineering at 5.0 against Automobile Engineering Book's 4.6. Automobile Engineering Book's advantage is ratings volume (9 vs 1) and iOS requirement (14.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Automobile Engineering Book sells 4 in-app purchases, starting at $2.99 per 3 months and Material Engineering sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Material Engineering holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Automobile Engineering Book has 9 ratings behind it against 1, so its average is the more settled of the two.

Automobile Engineering Book ships an update every 5 weeks, Material Engineering every 3 months. The most recent releases landed on August 4, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Automobile Engineering Book | Material Engineering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/automobile-engineering-book/id1583758958/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/material-engineering/id6739977362/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 136 MB | 17 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Pereshein](https://appshunter.io/developer/1041461209) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## 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 |


### Material Engineering

[App page](https://appshunter.io/ios/app/material-engineering/id6739977362)

Master material science concepts with an engaging quiz app. Explore diverse topics, receive instant feedback, and track your progress. Perfect for students, professionals, and enthusiasts seeking to deepen their understanding of materials.

**Highlights:** Comprehensive quizzes on various material types, Expert-designed challenging questions, Instant feedback with detailed explanations, Personalized progress tracking and analytics, Diverse quiz modes (practice, timed, topic-focused), Achievements and leaderboards

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


## Frequently asked questions

### Is Automobile Engineering Book free?

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

### Is Material Engineering free?

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

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

Material Engineering is rated higher. Automobile Engineering Book averages 4.6 out of 5 from 9 ratings, while Material Engineering averages 5.0 from 1 ratings.

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

Neither Automobile Engineering Book nor Material Engineering shows ads.

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

Automobile Engineering Book ships an update every 5 weeks, and Material Engineering every 3 months. Most recently, Automobile Engineering Book was updated on August 4, 2026 and Material Engineering on July 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*