Mike Holt's Electrical Toolbox vs WiZ Pro Setup
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.
WiZ Pro Setup
This app assists installers with the initial setup and testing of WiZ Pro lighting products. It allows for basic control and commissioning even before Wi-Fi is available, streamlining the installation process.
- Initiate commissioning
- Perform testing
- Control lamps with accessories
- Offsite setup capabilities
- Pre-Wi-Fi control
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WiZ Pro Setup app is the latest addition to the WiZ Pro Software suite dedicated for installers. The app leverages some technical capabilities of recent WiZ Pro products in order to initiate commissioning, do some testing and even have lamps obey accessories commands for simple scenarios even before Wi-Fi is deployed, or fully offsite. Then, after the lights have connected to the Wi-Fi, they can be fully controlled using WiZ Pro Dashboard and WiZ app.
Screenshots
Verdict
The clearest difference is review sentiment: Mike Holt's Electrical Toolbox at 77% against WiZ Pro Setup's 25%. Mike Holt's Electrical Toolbox also leads on rating (4.6 vs 1.4) and ratings volume (197 vs 16). On price, update cadence, ads and in-app purchases 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.
Mike Holt's Electrical Toolbox holds the better App Store score, 4.6 against 1.4. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 197 ratings behind it against 16, 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 25% of WiZ Pro Setup's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.
| Parameter | Mike Holt's Electrical Toolbox | WiZ Pro Setup |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (197 ratings) — better | 1.4 (16 ratings) |
| Positive reviews | 76.7% of reviews — better | 25.0% of reviews |
| Number of ratings | 197 — better | 16 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 26 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Holt Enterprises | Signify Netherlands B.V. |
Customer experience
Mike Holt's Electrical Toolbox
WiZ Pro Setup
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
WiZ Pro Setup
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mike Holt's Electrical Toolbox
No in-app purchases
WiZ Pro Setup
No in-app purchases
Questions
Is Mike Holt's Electrical Toolbox free?
Is WiZ Pro Setup free?
Which has better reviews, Mike Holt's Electrical Toolbox or WiZ Pro Setup?
Do Mike Holt's Electrical Toolbox or WiZ Pro Setup have ads?
Which is updated more often, Mike Holt's Electrical Toolbox or WiZ Pro Setup?
Other comparisons
