# NEC Mastery vs SCADA & PLC Academy

The clearest difference is update cadence: NEC Mastery at fortnightly against SCADA & PLC Academy's every 5 months. NEC Mastery also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. NEC Mastery sells 4 in-app purchases, starting at $9.99 per month and SCADA & PLC Academy sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

NEC Mastery ships an update fortnightly, SCADA & PLC Academy every 5 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | NEC Mastery | SCADA & PLC Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (174 ratings)](https://appshunter.io/ios/app/nec-mastery/id6720711044/reviews)** | — |
| Number of ratings | **174** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 127 MB | 158 MB |
| Requires iOS | **16** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Webrich Software Limited](https://appshunter.io/developer/290203591) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## 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 |


### SCADA & PLC Academy

[App page](https://appshunter.io/ios/app/scada-and-plc-academy/id6780137074)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PLC Programming Module | $4.99 | one-time |
| SCADA Design Module | $4.99 | one-time |
| SCADA Workflow Module | $4.99 | one-time |
| Complete Bundle | $14.99 | one-time |


## Frequently asked questions

### Is NEC Mastery free?

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

### Is SCADA & PLC Academy free?

SCADA & PLC Academy is free to download, with in-app purchases available.

### Do NEC Mastery or SCADA & PLC Academy have ads?

Neither NEC Mastery nor SCADA & PLC Academy shows ads.

### Which is updated more often, NEC Mastery or SCADA & PLC Academy?

NEC Mastery ships an update fortnightly, and SCADA & PLC Academy every 5 months. Most recently, NEC Mastery was updated on November 8, 2026 and SCADA & PLC Academy on November 5, 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.*