# Mike Holt's Electrical Toolbox vs NEC Load Calculator

The clearest difference is in-app purchases: Mike Holt's Electrical Toolbox at none against NEC Load Calculator's 1. Mike Holt's Electrical Toolbox also leads on ratings volume (197 vs 3) and iOS requirement (14.0 vs 18.6). NEC Load Calculator's advantage is rating (5.0 vs 4.6) and review sentiment (100% vs 77%). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. NEC Load Calculator sells 1 one-off in-app purchase. Mike Holt's Electrical Toolbox asks for nothing beyond the download.

NEC Load Calculator holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 197 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 77% of Mike Holt's Electrical Toolbox's written reviews are positive against 100% of NEC Load Calculator's.

Mike Holt's Electrical Toolbox ships an update every 3 months, NEC Load Calculator every 3 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Mike Holt's Electrical Toolbox | NEC Load Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (197 ratings)](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nec-load-calculator/id6785889421/reviews)** |
| Number of ratings | **197** | 3 |
| Positive reviews | 76.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 26 MB | 12 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mike Holt Enterprises](https://appshunter.io/developer/1349960186) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## 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


### NEC Load Calculator

[App page](https://appshunter.io/ios/app/nec-load-calculator/id6785889421)

This app performs electrical load calculations based on the NEC 2023 code. It offers modules for residential, commercial, motor, and branch circuit calculations, along with panel scheduling and PDF export. Designed for licensed electricians and contractors.

**Highlights:** NEC 2023 load calculations, Residential, commercial, motor, branch circuit modules, Panel schedule editor, Step-by-step calculation results, Panel layout generation, PDF export

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NEC LOAD PRO | $7.99 | 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 NEC Load Calculator free?

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

### Which has better reviews, Mike Holt's Electrical Toolbox or NEC Load Calculator?

NEC Load Calculator is rated higher. Mike Holt's Electrical Toolbox averages 4.6 out of 5 from 197 ratings, while NEC Load Calculator averages 5.0 from 3 ratings.

### Do Mike Holt's Electrical Toolbox or NEC Load Calculator have ads?

Neither Mike Holt's Electrical Toolbox nor NEC Load Calculator shows ads.

### Which is updated more often, Mike Holt's Electrical Toolbox or NEC Load Calculator?

Mike Holt's Electrical Toolbox ships an update every 3 months, and NEC Load Calculator every 3 weeks. Most recently, Mike Holt's Electrical Toolbox was updated on November 2, 2026 and NEC Load Calculator on November 4, 2026.

---

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