# Mechanical Components vs Basic Engineering Dictionary

The clearest difference is rating: Basic Engineering Dictionary at 4.0 against Mechanical Components's 3.0. Basic Engineering Dictionary also leads on update cadence (every 3 months vs every 7 months) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Mechanical Components sells 4 in-app purchases, starting at $7.99 per 7 days and Basic Engineering Dictionary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Basic Engineering Dictionary holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

Mechanical Components ships an update every 7 months, Basic Engineering Dictionary every 3 months. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Mechanical Components | Basic Engineering Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/mechanical-components/id6738186476/reviews) | **[4.0 (6 ratings)](https://appshunter.io/ios/app/basic-engineering-dictionary/id6746554325/reviews)** |
| Number of ratings | 2 | **6** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 49 MB | 88 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## What reviewers say

### Mechanical Components

[App page](https://appshunter.io/ios/app/mechanical-components/id6738186476)

Test your knowledge of mechanical components with interactive quizzes. Features high-quality images, instant feedback, and multiple difficulty levels to help you master engineering parts. Ideal for students, DIY enthusiasts, and professionals.

**Highlights:** Interactive quizzes on mechanical parts, High-quality component images, Instant feedback and facts, Multiple difficulty levels, Learn and master engineering components

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $7.99 | per 7 days |
| Month | $19.99 | per month |
| 6 months | $19.99 | per 6 months |
| Year | $29.99 | per year |


### 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 Components free?

Mechanical Components is free to download, with in-app purchases available.

### Is Basic Engineering Dictionary free?

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

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

Basic Engineering Dictionary is rated higher. Mechanical Components averages 3.0 out of 5 from 2 ratings, while Basic Engineering Dictionary averages 4.0 from 6 ratings.

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

Neither Mechanical Components nor Basic Engineering Dictionary shows ads.

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

Mechanical Components ships an update every 7 months, and Basic Engineering Dictionary every 3 months. Most recently, Mechanical Components was updated on October 2, 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.*