# NEC Exam Prep vs Substation Engineer Suite

NEC Exam Prep and Substation Engineer Suite are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. NEC Exam Prep sells 6 in-app purchases, starting at $7.99 per 7 days and Substation Engineer Suite sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | NEC Exam Prep | Substation Engineer Suite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (6 ratings)](https://appshunter.io/ios/app/nec-exam-prep/id6757428316/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 463 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## What reviewers say

### NEC Exam Prep

[App page](https://appshunter.io/ios/app/nec-exam-prep/id6757428316)

Master the National Electrical Code (NEC) with engaging quizzes covering all essential topics. Ideal for students and professionals seeking to boost their knowledge and confidence for the NEC exam. Learn and grow with this comprehensive study companion.

**Highlights:** Comprehensive NEC topic coverage, Engaging and fun quizzes, Boosts knowledge and confidence, Code navigation strategies, Electrical theory fundamentals, Wiring methods and materials

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $7.99 | per 7 days |
| 1 Month | $19.99 | per month |
| 1 Year | $29.99 | per year |
| 1500 | $1.99 | one-time |
| 3500 | $2.99 | one-time |
| 9000 | $4.99 | one-time |


### Substation Engineer Suite

[App page](https://appshunter.io/ios/app/substation-engineer-suite/id6780664986)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Electrical Substation Toolkit | $4.99 | one-time |
| 3D Explorer | $4.99 | one-time |
| All Modules Bundle | $12.99 | one-time |


## Frequently asked questions

### Is NEC Exam Prep free?

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

### Is Substation Engineer Suite free?

Substation Engineer Suite is free to download, with in-app purchases available.

### Do NEC Exam Prep or Substation Engineer Suite have ads?

Neither NEC Exam Prep nor Substation Engineer Suite shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*