# Partial Reel Calculator vs Mike Holt's Electrical Toolbox

The clearest difference is rating: Mike Holt's Electrical Toolbox at 4.6 against Partial Reel Calculator's 2.4. Mike Holt's Electrical Toolbox also leads on review sentiment (77% vs 44%) and ratings volume (198 vs 14). On price, update cadence, ads and in-app purchases there is nothing between them.

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 2.4. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 198 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 44% of Partial Reel Calculator's written reviews are positive against 77% of Mike Holt's Electrical Toolbox's.

Partial Reel Calculator ships an update every 4 months, Mike Holt's Electrical Toolbox every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Partial Reel Calculator | Mike Holt's Electrical Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (14 ratings)](https://appshunter.io/ios/app/partial-reel-calculator/id489177969/reviews) | **[4.6 (198 ratings)](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647/reviews)** |
| Number of ratings | 14 | **198** |
| Positive reviews | 44.4% of reviews | **76.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 11 MB | 26 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [Mike Holt Enterprises](https://appshunter.io/developer/1349960186) |

## What reviewers say

### Partial Reel Calculator

[App page](https://appshunter.io/ios/app/partial-reel-calculator/id489177969)

This utility app helps estimate the remaining wire or cable footage on a reel. It comes preloaded with common cables and reels, and allows users to create custom favorites for quick access.

**Highlights:** Estimates wire/cable footage on reels, Preloaded with common cables and reels, Create custom favorite cables and reels, Available for iPad and iPhone

**Features:** macOS Compatibility

**In-app purchases:** none


### Mike Holt's Electrical Toolbox

[App page](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647)

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.

**Highlights:** Conductor sizing, Voltage drop limitations, Circuit protection sizing, Race sizing, Equipment grounding conductor sizing, Dwelling-unit service calculations

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for electricians
- 💡 Provides code article references
- 👍 Useful for on-the-spot reference
- 👍 Excellent for verifying calculations
- 👍 Helpful for exam preparation

**What reviewers complain about**

- 🐛 Emailing results not working
- 🐛 Outdated information
- 🐛 Load calc a little clunky
- 🐛 Content setup needs overhaul
- 🐛 Video series lacks completion system

**Reported bugs**

- Cannot email results
- Video player widescreen exit bug
- Previous calculation data not erased
- App content is outdated

**Requested features**

- 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


## Frequently asked questions

### Is Partial Reel Calculator free?

Partial Reel Calculator is free to download, with no in-app purchases.

### Is Mike Holt's Electrical Toolbox free?

Mike Holt's Electrical Toolbox is free to download, with no in-app purchases.

### Which has better reviews, Partial Reel Calculator or Mike Holt's Electrical Toolbox?

Mike Holt's Electrical Toolbox is rated higher. Partial Reel Calculator averages 2.4 out of 5 from 14 ratings, while Mike Holt's Electrical Toolbox averages 4.6 from 198 ratings.

### Do Partial Reel Calculator or Mike Holt's Electrical Toolbox have ads?

Neither Partial Reel Calculator nor Mike Holt's Electrical Toolbox shows ads.

### Which is updated more often, Partial Reel Calculator or Mike Holt's Electrical Toolbox?

Partial Reel Calculator ships an update every 4 months, and Mike Holt's Electrical Toolbox every 3 months. Most recently, Partial Reel Calculator was updated on November 1, 2026 and Mike Holt's Electrical Toolbox on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*