Mike Holt's Electrical Toolbox vs Connected Safety+
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.
Connected Safety+
This app provides commercial fire installers and end-users with a connected view of their sites and assets. Access fire system history, service events, and health status instantly. Advanced reporting and inspection tools help improve service efficiencies.
- Connected services for fire installers
- Site and asset monitoring
- Fire system history access
- Service event tracking
- Health status of fire systems
- Advanced reports and inspections
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Connected Safety+ offers a suite of connected services for Commercial Fire Installers and end users that wish to have a connected view of their sites and assets. It provides instant access to the Fire Systems history, service events, and health. Advanced reports and inspections tools also make ConnectedSafety+ the perfect tool to drive efficiencies in service.
Screenshots
Verdict
The clearest difference is rating: Connected Safety+ at 5.0 against Mike Holt's Electrical Toolbox's 4.6. Connected Safety+ also leads on update cadence (every 5 weeks vs every 3 months). Mike Holt's Electrical Toolbox's advantage is ratings volume (197 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.
Connected Safety+ 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 197 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, Connected Safety+ every 5 weeks. The most recent releases landed on September 21, 2026 and September 4, 2026 respectively.
| Parameter | Mike Holt's Electrical Toolbox | Connected Safety+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (197 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 76.7% of reviews | — |
| Number of ratings | 197 — better | 1 |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 26 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Holt Enterprises | Walter Kidde Portable Equipment |
Customer experience
Mike Holt's Electrical Toolbox
Connected Safety+
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
Connected Safety+
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mike Holt's Electrical Toolbox
No in-app purchases
Connected Safety+
No in-app purchases
Questions
Is Mike Holt's Electrical Toolbox free?
Is Connected Safety+ free?
Which has better reviews, Mike Holt's Electrical Toolbox or Connected Safety+?
Do Mike Holt's Electrical Toolbox or Connected Safety+ have ads?
Which is updated more often, Mike Holt's Electrical Toolbox or Connected Safety+?
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