# NEC Mastery vs Electric Circuits Simulator

The clearest difference is price: NEC Mastery at Free against Electric Circuits Simulator's $6.99. NEC Mastery also leads on update cadence (fortnightly vs every 5 months) and device support (4 vs 2). Electric Circuits Simulator's advantage is in-app purchases (none vs 4). On ads there is nothing between them.

NEC Mastery is free to download; Electric Circuits Simulator costs $6.99 up front. NEC Mastery sells 4 in-app purchases, starting at $9.99 per month. Electric Circuits Simulator asks for nothing beyond the download.

NEC Mastery ships an update fortnightly, Electric Circuits Simulator every 5 months. The most recent releases landed on October 8, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | NEC Mastery | Electric Circuits Simulator |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | **[4.8 (165 ratings)](https://appshunter.io/ios/app/nec-mastery/id6720711044/reviews)** | — |
| Number of ratings | **165** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 127 MB | 28 MB |
| Requires iOS | **16** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Webrich Software Limited](https://appshunter.io/developer/290203591) | [旭 陈](https://appshunter.io/developer/6780413573) |

## What reviewers say

### NEC Mastery

[App page](https://appshunter.io/ios/app/nec-mastery/id6720711044)

Prepare for electrician certification exams with over 8,000 practice questions and detailed explanations. Access a comprehensive quick reference guide and 20 professional NEC calculators for on-the-job use. Track work hours with a built-in log for state board submissions.

**Highlights:** 8000+ exam-style questions, 20 NEC calculators, Quick reference guide, Electrician hour log, 2023/2024 NEC Code updates, Customizable study syllabus, Mock tests and performance tracking

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Question Bank | $9.99 | per month |
| Full Question Bank | $24.99 | per 3 months |
| Full Question Bank | $39.99 | per 6 months |
| Full Question Bank | $59.99 | per year |


### Electric Circuits Simulator

[App page](https://appshunter.io/ios/app/electric-circuits-simulator/id6748567946)

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

**In-app purchases:** none


## Frequently asked questions

### Is NEC Mastery free?

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

### Is Electric Circuits Simulator free?

Electric Circuits Simulator costs $6.99, with no in-app purchases.

### Do NEC Mastery or Electric Circuits Simulator have ads?

Neither NEC Mastery nor Electric Circuits Simulator shows ads.

### Which is updated more often, NEC Mastery or Electric Circuits Simulator?

NEC Mastery ships an update fortnightly, and Electric Circuits Simulator every 5 months. Most recently, NEC Mastery was updated on October 8, 2026 and Electric Circuits Simulator on September 23, 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.*