# Mike Holt's Electrical Toolbox vs Intelli

The clearest difference is rating: Mike Holt's Electrical Toolbox at 4.6 against Intelli's 4.0. Mike Holt's Electrical Toolbox also leads on ratings volume (197 vs 4). On price, update cadence, ads and in-app purchases 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 4.0. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 197 ratings behind it against 4, so its average is the more settled of the two.

Mike Holt's Electrical Toolbox ships an update every 3 months, Intelli every 5 months. The most recent releases landed on October 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Mike Holt's Electrical Toolbox | Intelli |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (197 ratings)](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/intelli-arc/id6448538514/reviews) |
| Number of ratings | **197** | 4 |
| Positive reviews | 76.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 26 MB | 80 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mike Holt Enterprises](https://appshunter.io/developer/1349960186) | [Siemens AG](https://appshunter.io/developer/394503271) |

## 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


### Intelli

[App page](https://appshunter.io/ios/app/intelli-arc/id6448538514)

This application allows users to communicate with an AFCI breaker via Bluetooth. It provides diagnostic measurements, setup options, and the ability to view load waveforms, mimicking oscilloscope functionality. This eliminates the need for a physical oscilloscope when troubleshooting electrical loads.

**Highlights:** Bluetooth communication with AFCI breaker, Basic diagnostic measurements, Setup and view load waveforms, Mimics oscilloscope functionality, Troubleshooting electrical loads, Arc detection algorithm improvement

**In-app purchases:** none


## 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 Intelli free?

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

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

Mike Holt's Electrical Toolbox is rated higher. Mike Holt's Electrical Toolbox averages 4.6 out of 5 from 197 ratings, while Intelli averages 4.0 from 4 ratings.

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

Neither Mike Holt's Electrical Toolbox nor Intelli shows ads.

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

Mike Holt's Electrical Toolbox ships an update every 3 months, and Intelli every 5 months. Most recently, Mike Holt's Electrical Toolbox was updated on October 26, 2026 and Intelli on October 8, 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.*