# Mike Holt's Electrical Toolbox vs Leviton Smart Sensor

The clearest difference is rating: Mike Holt's Electrical Toolbox at 4.6 against Leviton Smart Sensor's 3.9. Mike Holt's Electrical Toolbox also leads on ratings volume (197 vs 9) and review sentiment (77% vs 67%). 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 3.9. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 197 ratings behind it against 9, 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 67% of Leviton Smart Sensor's.

Mike Holt's Electrical Toolbox ships an update every 3 months, Leviton Smart Sensor every 5 months. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Mike Holt's Electrical Toolbox | Leviton Smart Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (197 ratings)](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647/reviews)** | [3.9 (9 ratings)](https://appshunter.io/ios/app/leviton-smart-sensor/id1482312262/reviews) |
| Number of ratings | **197** | 9 |
| Positive reviews | **76.7% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 26 MB | 31 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mike Holt Enterprises](https://appshunter.io/developer/1349960186) | [Leviton Manufacturing Co. Inc.](https://appshunter.io/developer/877607790) |

## 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


### Leviton Smart Sensor

[App page](https://appshunter.io/ios/app/leviton-smart-sensor/id1482312262)

Configure and interact with Leviton Smart Sensor products. Tailor sensor settings to specific space requirements and comply with energy codes. Suitable for installers, building maintenance, and end-users.

**Highlights:** Configure smart sensor products, Set space requirements, Comply with energy codes, Interact with sensors, Suitable for installers and end-users

**Features:** Vision Pro support

**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 Leviton Smart Sensor free?

Leviton Smart Sensor is free to download, with no in-app purchases.

### Which has better reviews, Mike Holt's Electrical Toolbox or Leviton Smart Sensor?

Mike Holt's Electrical Toolbox is rated higher. Mike Holt's Electrical Toolbox averages 4.6 out of 5 from 197 ratings, while Leviton Smart Sensor averages 3.9 from 9 ratings.

### Do Mike Holt's Electrical Toolbox or Leviton Smart Sensor have ads?

Neither Mike Holt's Electrical Toolbox nor Leviton Smart Sensor shows ads.

### Which is updated more often, Mike Holt's Electrical Toolbox or Leviton Smart Sensor?

Mike Holt's Electrical Toolbox ships an update every 3 months, and Leviton Smart Sensor every 5 months. Most recently, Mike Holt's Electrical Toolbox was updated on September 21, 2026 and Leviton Smart Sensor on September 11, 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.*