# Electrical Calculations vs ProLink III

The clearest difference is in-app purchases: ProLink III at none against Electrical Calculations's 3. ProLink III also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.0). Electrical Calculations's advantage is update cadence (every 3 weeks vs every 10 months). On price and device support there is nothing between them.

Both are free to download. Electrical Calculations sells 3 in-app purchases, starting at $3.99 per 3 months. ProLink III asks for nothing beyond the download.

Electrical Calculations ships an update every 3 weeks, ProLink III every 10 months. The most recent releases landed on September 25, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Electrical Calculations | ProLink III |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (126 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** | — |
| Number of ratings | **126** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 10 months |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 443 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Emerson Process Management](https://appshunter.io/developer/561985742) |

## What reviewers say

### Electrical Calculations

[App page](https://appshunter.io/ios/app/electrical-calculations/id993232048)

This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.

**Highlights:** Wire size and voltage drop calculations, Power, current, and resistance calculations, Motor performance and connection diagrams, Electronic component calculations, Extensive unit conversions, PDF report generation, Support for IEC, CEI, NEC, CEC standards

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (3 months) | $3.99 | per 3 months |
| PRO Version (1 year) | $7.49 | per year |
| PRO Version (Lifetime) | $89.99 | one-time |


### ProLink III

[App page](https://appshunter.io/ios/app/prolink-iii/id1531067581)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Calculations free?

Electrical Calculations is free to download, with in-app purchases available.

### Is ProLink III free?

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

### Do Electrical Calculations or ProLink III have ads?

Electrical Calculations shows ads; ProLink III does not.

### Which is updated more often, Electrical Calculations or ProLink III?

Electrical Calculations ships an update every 3 weeks, and ProLink III every 10 months. Most recently, Electrical Calculations was updated on September 25, 2026 and ProLink III on September 16, 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.*