Overhead Install Guide vs Mike Holt's Electrical Toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Overhead Install Guide
This utility app offers Southwire's official recommendations for installing overhead transmission electrical conductors. It provides essential field information and includes a calculator for determining bullwheel and block diameters.
- Overhead conductor installation recommendations
- Information from Overhead Conductor Manual
- Industry standard IEEE 524 data
- Bullwheel and block diameter calculator
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This app provides Southwire’s recommendations for the installation of overhead transmission electrical conductors. It is a convenient way to have the information you need for a successful installation with you in the field. Features: Recommendations for the installation of overhead transmission electrical conductors. Information from our Overhead Conductor Manual and the industry accepted standard IEEE 524. Calculator to determine the minimum diameter of the bullwheel and blocks needed for installation.
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.
Screenshots
Verdict
The clearest difference is ratings volume: Mike Holt's Electrical Toolbox at 197 against Overhead Install Guide's 5. Mike Holt's Electrical Toolbox also leads on update cadence (every 3 months vs every 9 months) and device support (3 vs 1). On price, rating, 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.
On the App Store both sit at effectively the same score — 4.6 for Overhead Install Guide against 4.6 for Mike Holt's Electrical Toolbox. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 197 ratings behind it against 5, so its average is the more settled of the two.
Overhead Install Guide ships an update every 9 months, Mike Holt's Electrical Toolbox every 3 months. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.
| Parameter | Overhead Install Guide | Mike Holt's Electrical Toolbox |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) | 4.6 (197 ratings) |
| Positive reviews | — | 76.7% of reviews |
| Number of ratings | 5 | 197 — better |
| Update frequency | Every 9 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Southwire Company | Mike Holt Enterprises |
Customer experience
Overhead Install Guide
Mike Holt's Electrical Toolbox
Bugs and requests
Overhead Install Guide
Not enough reviews yet to summarise bugs or 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
In-app purchases
Overhead Install Guide
No in-app purchases
Mike Holt's Electrical Toolbox
No in-app purchases
Questions
Is Overhead Install Guide free?
Is Mike Holt's Electrical Toolbox free?
Which has better reviews, Overhead Install Guide or Mike Holt's Electrical Toolbox?
Do Overhead Install Guide or Mike Holt's Electrical Toolbox have ads?
Which is updated more often, Overhead Install Guide or Mike Holt's Electrical Toolbox?
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