# NEC Electrical Exam by VoltLab vs NEC Prep

The clearest difference is in-app purchases: NEC Prep at none against NEC Electrical Exam by VoltLab's 2. NEC Prep also leads on ratings volume (4 vs 1). NEC Electrical Exam by VoltLab's advantage is ads (none vs shown) and iOS requirement (15.6 vs 17.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. NEC Electrical Exam by VoltLab sells 2 in-app purchases, starting at $2.99 per month. NEC Prep asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for NEC Electrical Exam by VoltLab against 5.0 for NEC Prep. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

NEC Electrical Exam by VoltLab ships an update every 5 weeks, NEC Prep monthly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NEC Electrical Exam by VoltLab | NEC Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/nec-electrical-exam-by-voltlab/id6759293855/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/nec-prep/id6766883486/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | **Free** | Ad-supported |
| Size | 77 MB | 125 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nazmul Islam](https://appshunter.io/developer/1860082590) | [DYLAN MICHAEL MCBEAN](https://appshunter.io/developer/1896334281) |

## What reviewers say

### NEC Electrical Exam by VoltLab

[App page](https://appshunter.io/ios/app/nec-electrical-exam-by-voltlab/id6759293855)

Prepare for electrician licensing exams with AI-powered practice tests and personalized study plans. Track your progress, identify weak areas, and simulate real exam conditions to ensure you're ready to pass.

**Highlights:** AI-powered readiness score, Full mock exams, Customizable practice drills, Daily code challenges, AI-generated questions with explanations, Progress tracking and weak area identification, Timed practice mode

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| US | $2.99 | per month |
| US | $29.99 | per year |


### NEC Prep

[App page](https://appshunter.io/ios/app/nec-prep/id6766883486)

This app guides users through electrical exam preparation with a structured study plan. It focuses on building code book lookup speed through lessons, practice rounds, and progress tracking, culminating in timed runs. The tool helps users learn efficient navigation and application of electrical code rules.

**Highlights:** Structured study path with visual course map, Book-first learning for code book navigation, Daily lookup questions and topic-focused practice, Progress tracking for lessons, streaks, and corrections, Local study settings saved on device

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

**In-app purchases:** none


## Frequently asked questions

### Is NEC Electrical Exam by VoltLab free?

NEC Electrical Exam by VoltLab is free to download, with in-app purchases available.

### Is NEC Prep free?

NEC Prep is free to download, with no in-app purchases.

### Which has better reviews, NEC Electrical Exam by VoltLab or NEC Prep?

NEC Electrical Exam by VoltLab and NEC Prep are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do NEC Electrical Exam by VoltLab or NEC Prep have ads?

NEC Prep shows ads; NEC Electrical Exam by VoltLab does not.

### Which is updated more often, NEC Electrical Exam by VoltLab or NEC Prep?

NEC Electrical Exam by VoltLab ships an update every 5 weeks, and NEC Prep monthly. Most recently, NEC Electrical Exam by VoltLab was updated on November 5, 2026 and NEC Prep on October 31, 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.*