# Mike Holt's Electrical Toolbox vs Scan & NEC Code

The clearest difference is in-app purchases: Mike Holt's Electrical Toolbox at none against Scan & NEC Code's 2. Mike Holt's Electrical Toolbox also leads on device support (3 vs 1) and iOS requirement (14.0 vs 18.0). Scan & NEC Code's advantage is update cadence (every 4 days vs every 3 months). On price and ads there is nothing between them.

Both are free to download. Scan & NEC Code sells 2 one-off in-app purchases. Mike Holt's Electrical Toolbox asks for nothing beyond the download.

Mike Holt's Electrical Toolbox ships an update every 3 months, Scan & NEC Code every 4 days. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Mike Holt's Electrical Toolbox | Scan & NEC Code |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (196 ratings)](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647/reviews)** | — |
| Number of ratings | **196** | — |
| Positive reviews | 76.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 26 MB | 6 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Mike Holt Enterprises](https://appshunter.io/developer/1349960186) | [Kazuhiro Higuchi](https://appshunter.io/developer/1887293944) |

## What reviewers say

### Mike Holt's Electrical Toolbox

[App page](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647)

This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.

**Highlights:** Conductor sizing, Voltage drop limitations, Circuit protection sizing, Race sizing, Equipment grounding conductor sizing, Dwelling-unit service calculations

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for electricians
- 💡 Provides code article references
- 👍 Useful for on-the-spot reference
- 👍 Excellent for verifying calculations
- 👍 Helpful for exam preparation

**What reviewers complain about**

- 🐛 Emailing results not working
- 🐛 Outdated information
- 🐛 Load calc a little clunky
- 🐛 Content setup needs overhaul
- 🐛 Video series lacks completion system

**Reported bugs**

- Cannot email results
- Video player widescreen exit bug
- Previous calculation data not erased
- App content is outdated

**Requested features**

- Increase transformer capacity to 225kva
- Add option to print load calc
- Update to NEC 2020
- Add completion system for video series
- Refine user interface for better usability


### Scan & NEC Code

[App page](https://appshunter.io/ios/app/scan-and-nec-code-electriccalc/id6796928462)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access - Promo Price | $9.99 | one-time |
| Lifetime Access - Regular Price | $19.99 | one-time |


## Frequently asked questions

### Is Mike Holt's Electrical Toolbox free?

Mike Holt's Electrical Toolbox is free to download, with no in-app purchases.

### Is Scan & NEC Code free?

Scan & NEC Code is free to download, with in-app purchases available.

### Do Mike Holt's Electrical Toolbox or Scan & NEC Code have ads?

Neither Mike Holt's Electrical Toolbox nor Scan & NEC Code shows ads.

### Which is updated more often, Mike Holt's Electrical Toolbox or Scan & NEC Code?

Mike Holt's Electrical Toolbox ships an update every 3 months, and Scan & NEC Code every 4 days. Most recently, Mike Holt's Electrical Toolbox was updated on October 21, 2026 and Scan & NEC Code on October 15, 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.*