# PLC Simulator, PLC Trainer vs Mike Holt's Electrical Toolbox

The clearest difference is rating: Mike Holt's Electrical Toolbox at 4.6 against PLC Simulator, PLC Trainer's 3.9. Mike Holt's Electrical Toolbox also leads on ratings volume (197 vs 59). On price, review sentiment, update cadence and ads 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. Both are backed by a comparable volume of ratings — 59 and 197 respectively. Written reviews point the same way: 75% of PLC Simulator, PLC Trainer's written reviews are positive against 77% of Mike Holt's Electrical Toolbox's.

PLC Simulator, PLC Trainer ships an update every 2 months, Mike Holt's Electrical Toolbox every 3 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | PLC Simulator, PLC Trainer | Mike Holt's Electrical Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (59 ratings)](https://appshunter.io/ios/app/plc-simulator-plc-trainer/id1326500777/reviews) | **[4.6 (197 ratings)](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647/reviews)** |
| Number of ratings | 59 | **197** |
| Positive reviews | 75.0% of reviews | **76.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 15 MB | 26 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Mike Holt Enterprises](https://appshunter.io/developer/1349960186) |

## What reviewers say

### PLC Simulator, PLC Trainer

[App page](https://appshunter.io/ios/app/plc-simulator-plc-trainer/id1326500777)

Learn the fundamentals of Programmable Logic Controllers (PLCs) with an interactive simulator. Experiment with basic programming concepts, including timers, counters, and logic instructions. Save your progress and revisit projects anytime.

**Highlights:** Interactive PLC simulator, Learn PLC basics, Experiment with programming, Save and load programs, Understand logic circuits, User-friendly interface

**Features:** macOS Compatibility, 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 PLC Simulator, PLC Trainer free?

PLC Simulator, PLC Trainer 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, PLC Simulator, PLC Trainer or Mike Holt's Electrical Toolbox?

Mike Holt's Electrical Toolbox is rated higher. PLC Simulator, PLC Trainer averages 3.9 out of 5 from 59 ratings, while Mike Holt's Electrical Toolbox averages 4.6 from 197 ratings.

### Do PLC Simulator, PLC Trainer or Mike Holt's Electrical Toolbox have ads?

Neither PLC Simulator, PLC Trainer nor Mike Holt's Electrical Toolbox shows ads.

### Which is updated more often, PLC Simulator, PLC Trainer or Mike Holt's Electrical Toolbox?

PLC Simulator, PLC Trainer ships an update every 2 months, and Mike Holt's Electrical Toolbox every 3 months. Most recently, PLC Simulator, PLC Trainer was updated on October 24, 2026 and Mike Holt's Electrical Toolbox on October 26, 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.*