Mike Holt's Electrical Toolbox vs Electrical Toolkit by HCP
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.
Electrical Toolkit by HCP
This comprehensive mobile toolkit provides electricians and professionals with essential calculations, NEC-compliant tools, and field utilities. It offers features for conduit bending, fill calculations, load analysis, and various electrical calculators, all designed for speed and clarity.
- Conduit bending calculations
- NEC-compliant conduit fill
- Residential load calculations
- Power and Ohm's Law calculators
- Wire sizing and voltage drop
- Offline functionality
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Transform your electrical work with the most comprehensive mobile toolkit designed specifically for electricians and electrical professionals. This powerful app puts essential calculations, NEC-compliant tools, and field-tested utilities right in your pocket. Conduit Bending Mastery• Offset Calculator: Perfect bends every time with precise measurements • 90-Degree Bends: Calculate stub-ups, kicks, and compound angles • Three & Four-Point Saddles: Navigate obstacles with professional precision • Rolling Offsets: Master complex bends with step-by-step guidance • Conduit Dimensions: Complete reference tables for EMT and RMC NEC-Compliant Conduit Fill • Real-Time Compliance: Instant NEC code compliance checking • Multiple Conductor Types: THWN, THHN, XHHW, and more • Smart Calculations: Automatic derating and fill percentage calculations • Professional Reports: Generate detailed conduit fill reports Residential Load Calculator • Optional Method Calculations: Complete NEC Article 220 compliance • Equipment Database: Extensive library of common electrical equipment • Load Analysis: Detailed breakdown of general, heating, and cooling loads • PDF Reports: Professional load calculations you can share with inspectors Comprehensive Electrical Calculators • Power Conversions: Seamlessly convert between amps, volts, watts, kilowatts, horsepower, and KVA • Ohm's Law Calculator: Instantly solve for voltage, current, power, and resistance • Wire Sizing: Determine minimum wire size based on ampacity requirements with NEC compliance • Voltage Drop Calculator: Precise calculations for single and three-phase systems • Power Factor Calculator: Optimize electrical efficiency with accurate power factor calculations Professional Features • Recently Used Tools: Quick access to your most-used calculators • Offline Capable: All calculations work without internet connection • Clean Interface: Intuitive design that works with work gloves • Instant Results: No waiting - calculations update in real-time• PDF Reports: Professional load calculations you can share with inspectors • Professional Accuracy: Field-tested formulas trusted by thousands of electricians Perfect for: • Licensed Electricians • Electrical Contractors• Electrical Engineers • Apprentices and Students • Electrical Inspectors • Maintenance Technicians Built for speed. Designed for clarity. This app helps you save time, reduce mistakes, and get the job done right—whether you’re a seasoned pro or a new apprentice.
Screenshots
Verdict
The clearest difference is update cadence: Electrical Toolkit by HCP at every 8 days against Mike Holt's Electrical Toolbox's every 3 months. Electrical Toolkit by HCP also leads on review sentiment (86% vs 77%). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 4.6 for Mike Holt's Electrical Toolbox against 4.6 for Electrical Toolkit by HCP. Both are backed by a comparable volume of ratings — 197 and 78 respectively. Written reviews are what separate them: 77% of Mike Holt's Electrical Toolbox's written reviews are positive against 86% of Electrical Toolkit by HCP's.
Mike Holt's Electrical Toolbox ships an update every 3 months, Electrical Toolkit by HCP every 8 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | Mike Holt's Electrical Toolbox | Electrical Toolkit by HCP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (197 ratings) | 4.6 (78 ratings) — better |
| Positive reviews | 76.7% of reviews | 85.7% of reviews — better |
| Number of ratings | 197 — better | 78 |
| Update frequency | Every 3 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 26 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Holt Enterprises | Codefied Inc. |
Customer experience
Mike Holt's Electrical Toolbox
Electrical Toolkit by HCP
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
Electrical Toolkit by HCP
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mike Holt's Electrical Toolbox
No in-app purchases
Electrical Toolkit by HCP
No in-app purchases
Questions
Is Mike Holt's Electrical Toolbox free?
Is Electrical Toolkit by HCP free?
Which has better reviews, Mike Holt's Electrical Toolbox or Electrical Toolkit by HCP?
Do Mike Holt's Electrical Toolbox or Electrical Toolkit by HCP have ads?
Which is updated more often, Mike Holt's Electrical Toolbox or Electrical Toolkit by HCP?
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