# Mechanical Engineering Book vs Basic Engineering Dictionary

The clearest difference is price: Basic Engineering Dictionary at Free against Mechanical Engineering Book's $1.99. Basic Engineering Dictionary also leads on update cadence (every 3 months vs every 11 months). Mechanical Engineering Book's advantage is rating (4.7 vs 4.0) and in-app purchases (none vs 1). On review sentiment, ratings volume, ads and device support there is nothing between them.

Basic Engineering Dictionary is free to download; Mechanical Engineering Book costs $1.99 up front. Basic Engineering Dictionary sells 1 one-off in-app purchase. Mechanical Engineering Book asks for nothing beyond the download.

Mechanical Engineering Book holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 12 and 6 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Mechanical Engineering Book ships an update every 11 months, Basic Engineering Dictionary every 3 months. The most recent releases landed on October 1, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Mechanical Engineering Book | Basic Engineering Dictionary |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/mechanical-engineering-book/id6448752936/reviews)** | [4.0 (6 ratings)](https://appshunter.io/ios/app/basic-engineering-dictionary/id6746554325/reviews) |
| Number of ratings | **12** | 6 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 38 MB | 88 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Haroon Khalil](https://appshunter.io/developer/1685448939) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## 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


### Basic Engineering Dictionary

[App page](https://appshunter.io/ios/app/basic-engineering-dictionary/id6746554325)

Master engineering concepts with a comprehensive dictionary of over 11,000 terms, key equations, and formulas. Features interactive quizzes, a visual quick guide, and hands-free learning with autoplay mode. Ideal for students and professionals seeking to solidify their engineering knowledge.

**Highlights:** 11,000+ engineering terms, Key equations and formulas, Visual Quick Guide, Interactive quizzes, Autoplay mode for hands-free learning, User contributions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $3.99 | one-time |


## Frequently asked questions

### Is Mechanical Engineering Book free?

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

### Is Basic Engineering Dictionary free?

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

### Which has better reviews, Mechanical Engineering Book or Basic Engineering Dictionary?

Mechanical Engineering Book is rated higher. Mechanical Engineering Book averages 4.7 out of 5 from 12 ratings, while Basic Engineering Dictionary averages 4.0 from 6 ratings.

### Do Mechanical Engineering Book or Basic Engineering Dictionary have ads?

Neither Mechanical Engineering Book nor Basic Engineering Dictionary shows ads.

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

Mechanical Engineering Book ships an update every 11 months, and Basic Engineering Dictionary every 3 months. Most recently, Mechanical Engineering Book was updated on October 1, 2026 and Basic Engineering Dictionary on September 25, 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.*