# EREC vs Mike Holt's Electrical Toolbox

The clearest difference is rating: Mike Holt's Electrical Toolbox at 4.6 against EREC's 3.6. Mike Holt's Electrical Toolbox also leads on ratings volume (196 vs 5) and update cadence (every 3 months vs every 6 months). EREC's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and monetization model 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 3.6. That said, the two scores are not equally well evidenced: Mike Holt's Electrical Toolbox has 196 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 67% of EREC's written reviews are positive against 77% of Mike Holt's Electrical Toolbox's.

EREC ships an update every 6 months, Mike Holt's Electrical Toolbox every 3 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | EREC | Mike Holt's Electrical Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (5 ratings)](https://appshunter.io/ios/app/erec/id495132984/reviews) | **[4.6 (196 ratings)](https://appshunter.io/ios/app/mike-holts-electrical-toolbox/id1406630647/reviews)** |
| Number of ratings | 5 | **196** |
| Positive reviews | 66.7% of reviews | **76.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 174 MB | 26 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Escambia River Electric Cooperative, Inc.](https://appshunter.io/developer/495132987) | [Mike Holt Enterprises](https://appshunter.io/developer/1349960186) |

## What reviewers say

### EREC

[App page](https://appshunter.io/ios/app/erec/id495132984)

Manage your account details, view bills and balances, and make payments securely on the go. Schedule alerts, receive push notifications, and access nearly all online features instantly from your mobile device.

**Highlights:** Secure account access, View bill and balance, Make payments, Schedule alerts, Receive push notifications, Manage account details

**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 EREC free?

EREC 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, EREC or Mike Holt's Electrical Toolbox?

Mike Holt's Electrical Toolbox is rated higher. EREC averages 3.6 out of 5 from 5 ratings, while Mike Holt's Electrical Toolbox averages 4.6 from 196 ratings.

### Do EREC or Mike Holt's Electrical Toolbox have ads?

Neither EREC nor Mike Holt's Electrical Toolbox shows ads.

### Which is updated more often, EREC or Mike Holt's Electrical Toolbox?

EREC ships an update every 6 months, and Mike Holt's Electrical Toolbox every 3 months. Most recently, EREC was updated on October 23, 2026 and Mike Holt's Electrical Toolbox on October 21, 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.*