# Mechanical Dictionary vs Mechanical Components

The clearest difference is rating: Mechanical Dictionary at 4.4 against Mechanical Components's 3.0. Mechanical Dictionary also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Mechanical Components's advantage is ads (none vs shown). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Mechanical Dictionary sells 5 in-app purchases, starting at $1.99 per 7 days and Mechanical Components sells 4 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Mechanical Dictionary holds the better App Store score, 4.4 against 3.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

Mechanical Dictionary ships an update every 9 months, Mechanical Components every 7 months. The most recent releases landed on June 6, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | Mechanical Dictionary | Mechanical Components |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/mechanical-dictionary-offline/id1480363529/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/mechanical-components/id6738186476/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 7 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 49 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Puju Dekivadiya](https://appshunter.io/developer/1289574712) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### Mechanical Dictionary

[App page](https://appshunter.io/ios/app/mechanical-dictionary-offline/id1480363529)

This app provides a comprehensive offline dictionary for mechanical engineering terms. It includes video lessons, tests, and expert coaching to enhance knowledge in the field. Features like search, audio pronunciation, and daily word learning are available.

**Highlights:** Offline access to thousands of terms, Search and bookmark functionality, Audio pronunciation of words, Daily 'Word of the Day' feature, Multiple choice quizzes, Customizable color themes

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Plan | $1.99 | per 7 days |
| Monthly Pro Plan | $4.99 | per month |
| Yearly Pro Plan | $29.99 | per year |
| Remove Ads | $9.99 | one-time |
| Lifetime Access | $39.99 | one-time |


### 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 |


## Frequently asked questions

### Is Mechanical Dictionary free?

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

### Is Mechanical Components free?

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

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

Mechanical Dictionary is rated higher. Mechanical Dictionary averages 4.4 out of 5 from 5 ratings, while Mechanical Components averages 3.0 from 2 ratings.

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

Mechanical Dictionary shows ads; Mechanical Components does not.

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

Mechanical Dictionary ships an update every 9 months, and Mechanical Components every 7 months. Most recently, Mechanical Dictionary was updated on June 6, 2026 and Mechanical Components on June 8, 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.*