# Generac Field Pro vs NEC Load Calculator

The clearest difference is review sentiment: NEC Load Calculator at 100% against Generac Field Pro's 11%. NEC Load Calculator also leads on rating (5.0 vs 3.1). Generac Field Pro's advantage is in-app purchases (none vs 1) and ratings volume (26 vs 3). On price, update cadence, ads and monetization model there is nothing between them.

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

NEC Load Calculator holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Generac Field Pro has 26 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 11% of Generac Field Pro's written reviews are positive against 100% of NEC Load Calculator's.

Generac Field Pro ships an update fortnightly, NEC Load Calculator every 3 weeks. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Generac Field Pro | NEC Load Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (26 ratings)](https://appshunter.io/ios/app/generac-field-pro/id6550921902/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nec-load-calculator/id6785889421/reviews)** |
| Number of ratings | **26** | 3 |
| Positive reviews | 11.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 71 MB | 12 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Generac Power Systems, Inc.](https://appshunter.io/developer/829129500) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### Generac Field Pro

[App page](https://appshunter.io/ios/app/generac-field-pro/id6550921902)

Streamline the installation, servicing, and registration of energy systems. Features guided workflows, smart firmware updates, and comprehensive diagnostics for efficient system management.

**Highlights:** Guided commissioning workflow, Smart firmware updates, Full system testing, Product diagnostics, In-app activation and registration

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

**In-app purchases:** none


### NEC Load Calculator

[App page](https://appshunter.io/ios/app/nec-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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NEC LOAD PRO | $7.99 | one-time |


## Frequently asked questions

### Is Generac Field Pro free?

Generac Field Pro is free to download, with no in-app purchases.

### Is NEC Load Calculator free?

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

### Which has better reviews, Generac Field Pro or NEC Load Calculator?

NEC Load Calculator is rated higher. Generac Field Pro averages 3.1 out of 5 from 26 ratings, while NEC Load Calculator averages 5.0 from 3 ratings.

### Do Generac Field Pro or NEC Load Calculator have ads?

Neither Generac Field Pro nor NEC Load Calculator shows ads.

### Which is updated more often, Generac Field Pro or NEC Load Calculator?

Generac Field Pro ships an update fortnightly, and NEC Load Calculator every 3 weeks. Most recently, Generac Field Pro was updated on October 14, 2026 and NEC Load Calculator on October 19, 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.*