# Kopperfield vs NEC Electrical Load Calculator

The clearest difference is review sentiment: NEC Electrical Load Calculator at 100% against Kopperfield's 0%. NEC Electrical Load Calculator also leads on rating (5.0 vs 4.1). Kopperfield's advantage is in-app purchases (none vs 1) and update cadence (every 10 days vs every 4 weeks). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. NEC Electrical Load Calculator sells 1 one-off in-app purchase. Kopperfield asks for nothing beyond the download.

NEC Electrical Load Calculator holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Kopperfield has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Kopperfield's written reviews are positive against 100% of NEC Electrical Load Calculator's.

Kopperfield ships an update every 10 days, NEC Electrical Load Calculator every 4 weeks. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Kopperfield | NEC Electrical Load Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (15 ratings)](https://appshunter.io/ios/app/kopperfield/id6736772332/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nec-electrical-load-calculator/id6785889421/reviews)** |
| Number of ratings | **15** | 3 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 weeks |
| Monetization | Free | Free |
| Size | 64 MB | 12 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kopperfield](https://appshunter.io/developer/1756157251) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### Kopperfield

[App page](https://appshunter.io/ios/app/kopperfield/id6736772332)

Streamline electrical design and permit preparation with tools for load calculations, single-line diagrams, and panel schedules. Quickly reference the National Electrical Code with an AI-powered chatbot and generate PDF reports for inspectors.

**Highlights:** Load calculator with NEC standards, Single line diagram creation, Panel schedule generation, NEC chatbot, PDF report export, AI panel photo processing

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

**In-app purchases:** none


### NEC Electrical Load Calculator

[App page](https://appshunter.io/ios/app/nec-electrical-load-calculator/id6785889421)

This app performs electrical load calculations based on the NEC 2023 code. It offers modules for residential, commercial, motor, and branch circuit calculations, along with panel scheduling and PDF export. Designed for licensed electricians and contractors.

**Highlights:** NEC 2023 load calculations, Residential, commercial, motor, branch circuit modules, Panel schedule editor, Step-by-step calculation results, Panel layout generation, PDF export

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NEC LOAD PRO | $9.99 | one-time |


## Frequently asked questions

### Is Kopperfield free?

Kopperfield is free to download, with no in-app purchases.

### Is NEC Electrical Load Calculator free?

NEC Electrical Load Calculator is free to download, with in-app purchases available.

### Which has better reviews, Kopperfield or NEC Electrical Load Calculator?

NEC Electrical Load Calculator is rated higher. Kopperfield averages 4.1 out of 5 from 15 ratings, while NEC Electrical Load Calculator averages 5.0 from 3 ratings.

### Do Kopperfield or NEC Electrical Load Calculator have ads?

Neither Kopperfield nor NEC Electrical Load Calculator shows ads.

### Which is updated more often, Kopperfield or NEC Electrical Load Calculator?

Kopperfield ships an update every 10 days, and NEC Electrical Load Calculator every 4 weeks. Most recently, Kopperfield was updated on November 12, 2026 and NEC Electrical Load Calculator on November 13, 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.*