# Ferret Tools vs Mike Holt's Electrical Toolbox

The clearest difference is review sentiment: Mike Holt's Electrical Toolbox at 77% against Ferret Tools's 27%. Mike Holt's Electrical Toolbox also leads on rating (4.6 vs 3.1) and ratings volume (197 vs 23). Ferret Tools's advantage is update cadence (every 6 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mike Holt's Electrical Toolbox holds the better App Store score, 4.6 against 3.1. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 197 ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 27% of Ferret Tools's written reviews are positive against 77% of Mike Holt's Electrical Toolbox's.

Ferret Tools ships an update every 6 weeks, Mike Holt's Electrical Toolbox every 3 months. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Ferret Tools | Mike Holt's Electrical Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (23 ratings)](https://appshunter.io/ios/app/ferret-tools/id1275320105/reviews) | **[4.6 (197 ratings)](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647/reviews)** |
| Number of ratings | 23 | **197** |
| Positive reviews | 26.9% of reviews | **76.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 31 MB | 26 MB |
| Requires iOS | 15 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Cable Ferret Company Limited](https://appshunter.io/developer/1315506831) | [Mike Holt Enterprises](https://appshunter.io/developer/1349960186) |

## What reviewers say

### Ferret Tools

[App page](https://appshunter.io/ios/app/ferret-tools/id1275320105)

View and record live video from your inspection camera. This app allows you to capture photos and videos of hard-to-reach areas. Requires a separate Ferret inspection camera to function.

**Highlights:** Live video streaming, Photo capture, Video recording, Inspection camera control

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Ferret Tools free?

Ferret Tools is free to download, with no in-app purchases.

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

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

### Which has better reviews, Ferret Tools or Mike Holt's Electrical Toolbox?

Mike Holt's Electrical Toolbox is rated higher. Ferret Tools averages 3.1 out of 5 from 23 ratings, while Mike Holt's Electrical Toolbox averages 4.6 from 197 ratings.

### Do Ferret Tools or Mike Holt's Electrical Toolbox have ads?

Neither Ferret Tools nor Mike Holt's Electrical Toolbox shows ads.

### Which is updated more often, Ferret Tools or Mike Holt's Electrical Toolbox?

Ferret Tools ships an update every 6 weeks, and Mike Holt's Electrical Toolbox every 3 months. Most recently, Ferret Tools was updated on September 25, 2026 and Mike Holt's Electrical Toolbox on September 21, 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.*