# PrepFE vs Mechanical Dictionary

The clearest difference is review sentiment: Mechanical Dictionary at 100% against PrepFE's 17%. Mechanical Dictionary also leads on rating (4.4 vs 2.0). PrepFE's advantage is ads (none vs shown) and update cadence (every 2 months vs every 9 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. PrepFE sells 6 one-off in-app purchases and Mechanical Dictionary sells 5 in-app purchases, starting at $1.99 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 2.0. That said, the two scores are not equally well evidenced: PrepFE has 57 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 17% of PrepFE's written reviews are positive against 100% of Mechanical Dictionary's.

PrepFE ships an update every 2 months, Mechanical Dictionary every 9 months. The most recent releases landed on August 30, 2026 and June 6, 2026 respectively.

## The numbers

| Metric | PrepFE | Mechanical Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (57 ratings)](https://appshunter.io/ios/app/prepfe-fe-mechanical-prep/id1455746709/reviews) | **[4.4 (5 ratings)](https://appshunter.io/ios/app/mechanical-dictionary-offline/id1480363529/reviews)** |
| Number of ratings | **57** | 5 |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 288 MB | 14 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PrepFE, Inc.](https://appshunter.io/developer/1499557437) | [Puju Dekivadiya](https://appshunter.io/developer/1289574712) |

## What reviewers say

### PrepFE

[App page](https://appshunter.io/ios/app/prepfe-fe-mechanical-prep/id1455746709)

Prepare for the FE Mechanical exam with practice problems and flashcards. Learn by doing with expert-curated content, track your progress, and identify areas for improvement. Study conveniently on your mobile device, anytime, anywhere.

**Highlights:** Practice FE exam questions, Interactive practice exams, Hundreds of practice questions, Detailed step-by-step explanations, Reinforce learning with flashcards, Breakdown of strengths and weaknesses

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Access Renewal | $47.99 | one-time |
| 1 Month Access | $59.99 | one-time |
| 3 Months Access Renewal | $61.99 | one-time |
| 6 Months Access Renewal | $75.99 | one-time |
| 3 Months Access | $79.99 | one-time |
| 6 Months Access | $99.99 | one-time |


### 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 |


## Frequently asked questions

### Is PrepFE free?

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

### Is Mechanical Dictionary free?

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

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

Mechanical Dictionary is rated higher. PrepFE averages 2.0 out of 5 from 57 ratings, while Mechanical Dictionary averages 4.4 from 5 ratings.

### Do PrepFE or Mechanical Dictionary have ads?

Mechanical Dictionary shows ads; PrepFE does not.

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

PrepFE ships an update every 2 months, and Mechanical Dictionary every 9 months. Most recently, PrepFE was updated on August 30, 2026 and Mechanical Dictionary on June 6, 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.*