Mike Holt's Electrical Toolbox vs WenzlauWare
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mike Holt's Electrical Toolbox
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.
- Conductor sizing
- Voltage drop limitations
- Circuit protection sizing
- Race sizing
- Equipment grounding conductor sizing
- Dwelling-unit service calculations
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Mike Holt, the industry leader in the electrical industry (MikeHolt.com) has created an amazing, practical and useful app for the electrician, inspector, instructor, contractor and engineer. The app contains conductor sizing (including voltage drop limitations), circuit protection sizing, race sizing, equipment grounding conductor sizing for electric heating equipment (commercial and Residential), air-conditioning equipment (commercial and Residential), motors (commercial and Residential), Transformers (commercial) , and dwelling-unit service calculations and sizing.
WenzlauWare
This application allows users to monitor and control power and electronic systems remotely. It provides a convenient way to manage connected devices from a mobile device.
- Remote monitoring
- System control
- Power system management
- Electronic system management
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WenzlauWare Mobile is a mobile application for monitoring and control of Wenzlau Engineering power and electronic systems.
Screenshots
Verdict
The clearest difference is rating: WenzlauWare at 5.0 against Mike Holt's Electrical Toolbox's 4.6. WenzlauWare also leads on update cadence (monthly vs every 3 months) and iOS requirement (10.0 vs 14.0). Mike Holt's Electrical Toolbox's advantage is ratings volume (198 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WenzlauWare holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 198 ratings behind it against 1, so its average is the more settled of the two.
Mike Holt's Electrical Toolbox ships an update every 3 months, WenzlauWare monthly. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | Mike Holt's Electrical Toolbox | WenzlauWare |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (198 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 76.7% of reviews | — |
| Number of ratings | 198 — better | 1 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 110 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Holt Enterprises | Wenzlau Engineering, Inc. |
Customer experience
Mike Holt's Electrical Toolbox
WenzlauWare
Bugs and requests
Mike Holt's Electrical Toolbox
Reported bugs
4 issues- Cannot email results
- Video player widescreen exit bug
- Previous calculation data not erased
- App content is outdated
Requested features
6 requests- 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
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- Add more features, willing to pay extra
WenzlauWare
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mike Holt's Electrical Toolbox
No in-app purchases
WenzlauWare
No in-app purchases
Questions
Is Mike Holt's Electrical Toolbox free?
Is WenzlauWare free?
Which has better reviews, Mike Holt's Electrical Toolbox or WenzlauWare?
Do Mike Holt's Electrical Toolbox or WenzlauWare have ads?
Which is updated more often, Mike Holt's Electrical Toolbox or WenzlauWare?
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