# PrepFE vs Commercial Electrical Designer

The clearest difference is price: PrepFE at Free against Commercial Electrical Designer's $2.99. PrepFE also leads on iOS requirement (13.0 vs 17.0). Commercial Electrical Designer's advantage is in-app purchases (none vs 6) and update cadence (monthly vs every 36 months). On ads and device support there is nothing between them.

PrepFE is free to download; Commercial Electrical Designer costs $2.99 up front. PrepFE sells 6 one-off in-app purchases. Commercial Electrical Designer asks for nothing beyond the download.

PrepFE ships an update every 36 months, Commercial Electrical Designer monthly. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | PrepFE | Commercial Electrical Designer |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[2.6 (8 ratings)](https://appshunter.io/ios/app/prepfe-electrical-and-computer/id1519333024/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 36 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 288 MB | 42 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PrepFE, Inc.](https://appshunter.io/developer/1499557437) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## What reviewers say

### PrepFE

[App page](https://appshunter.io/ios/app/prepfe-electrical-and-computer/id1519333024)

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

**Highlights:** Practice FE exam questions, Interactive practice exams, Hundreds of practice questions, Detailed step-by-step explanations, Flashcards for key concepts, Progress tracking and weakness analysis, Updated content for new specifications

**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 |


### Commercial Electrical Designer

[App page](https://appshunter.io/ios/app/commercial-electrical-designer/id6762656727)

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

**In-app purchases:** none


## Frequently asked questions

### Is PrepFE free?

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

### Is Commercial Electrical Designer free?

Commercial Electrical Designer costs $2.99, with no in-app purchases.

### Do PrepFE or Commercial Electrical Designer have ads?

Neither PrepFE nor Commercial Electrical Designer shows ads.

### Which is updated more often, PrepFE or Commercial Electrical Designer?

PrepFE ships an update every 36 months, and Commercial Electrical Designer monthly. Most recently, PrepFE was updated on October 21, 2026 and Commercial Electrical Designer on October 19, 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.*