# Mike Holt's Electrical Toolbox

> Mike Holt's Electrical Toolbox app for electrical professionals.

Canonical page: [https://chrome-stats.com/d/com.mhe.toolbox](https://chrome-stats.com/d/com.mhe.toolbox)

## Overview

- **ID:** `com.mhe.toolbox`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Mike Holt Enterprises
- **Category:** TOOLS
- **Downloads:** 61,183
- **Rating:** 4.45 / 5 (120 ratings)
- **Version:** 2.0.03
- **Last updated:** 2026-08-11
- **First published:** 2020-05-19
- **Publisher country:** US
- **Size:** 28 MB
- **Data as of:** 2026-10-29
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.mhe.toolbox)
- **Website:** [https://www.mikeholt.com/](https://www.mikeholt.com/)
- **Privacy policy:** [https://www.mikeholt.com/about-privacy.php](https://www.mikeholt.com/about-privacy.php)

## Description

Mike Holt's Electrical Toolbox app is a comprehensive tool designed for electrical professionals including electricians, inspectors, instructors, contractors, and engineers. Developed by Mike Holt, a trusted industry leader, this app offers practical utilities such as conductor sizing with voltage drop limitations, circuit protection sizing, race sizing, and equipment grounding sizing. It covers various equipment types such as electric heating, air-conditioning, motors, transformers, and dwelling-unit service calculations for both commercial and residential applications. The app streamlines complex electrical calculations, making it an essential resource for accurate and efficient electrical work.

## Rankings

- #280,790 — Overall

## Permissions and access

### Permissions

- `android.permission.INTERNET`
- `android.permission.USE_BIOMETRIC`
- `android.permission.USE_FINGERPRINT`
- `android.permission.VIBRATE`
- `com.mhe.toolbox.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Reviews are largely positive, especially about the app’s educational resources and usefulness for electrical calculations and checking work. The main repeated complaint is that commercial motor calculations did not work for some Android users, though one reviewer reported the issue was fixed after reinstalling the latest update.

### Pros

- Provides extensive, useful educational resources and information for people in the electrical trades, including help understanding code and studying.
- Offers handy electrical calculations, including load and motor calculations, and can help users check their work.
- Frequently praised as a valuable, high-quality resource for electricians and other trade professionals.

### Cons

- Commercial motor calculations were reported as not working in multiple reviews; one reviewer said reinstalling the latest update fixed the issue.

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.mhe.toolbox)