# NEC Code Exam Prep vs Yellow Book Reference

The clearest difference is chart position: Yellow Book Reference at #58 against NEC Code Exam Prep's #187. NEC Code Exam Prep's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

NEC Code Exam Prep costs $9.99 and Yellow Book Reference $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | NEC Code Exam Prep | Yellow Book Reference |
| --- | --- | --- |
| Price | $9.99 | $9.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | — |
| Monetization | Paid | — |
| Best chart rank | #187 | **#58** |
| Size | 20 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sayma Tasnim](https://appshunter.io/developer/1387287378) | [Armando Archuleta](https://appshunter.io/developer/6789760538) |

## What reviewers say

### NEC Code Exam Prep

[App page](https://appshunter.io/ios/app/nec-code-exam-prep/id1629478135)

**Currently charting:** #187 Top Paid · Education (US App Store)

Prepare for electrical licensing exams with practice questions and mock tests covering the National Electric Code. Features include detailed explanations for correct answers and personalized result history.

**Highlights:** Practice mode with answer explanations, Real exam style timed mock exams, Customizable quick mock exams, User profiles and result history, Regularly updated practice tests

**Features:** macOS Compatibility

**In-app purchases:** none


### Yellow Book Reference

[App page](https://appshunter.io/ios/app/yellow-book-reference/id6789764515)

**Currently charting:** #58 Top Paid · Education (US App Store)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NEC Code Exam Prep free?

NEC Code Exam Prep costs $9.99, with no in-app purchases.

### Is Yellow Book Reference free?

Yellow Book Reference costs $9.99, with no in-app purchases.

### Do NEC Code Exam Prep or Yellow Book Reference have ads?

Neither NEC Code Exam Prep nor Yellow Book Reference shows ads.

### Which is more popular, NEC Code Exam Prep or Yellow Book Reference?

NEC Code Exam Prep currently peaks at #187 in the App Store charts, and Yellow Book Reference at #58. Chart position reflects recent download velocity rather than total install base.

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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.*