# Electrical Calculations vs RF calculator & Smith Chart

The clearest difference is ads: RF calculator & Smith Chart at none against Electrical Calculations's shown. Electrical Calculations's advantage is update cadence (every 2 weeks vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Electrical Calculations sells 3 in-app purchases, starting at $3.99 per 3 months and RF calculator & Smith Chart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Electrical Calculations ships an update every 2 weeks, RF calculator & Smith Chart every 4 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Electrical Calculations | RF calculator & Smith Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (129 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** | — |
| Number of ratings | **129** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 31 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## 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 |


### RF calculator & Smith Chart

[App page](https://appshunter.io/ios/app/rf-calculator-and-smith-chart/id6757265018)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| upgrade to pro | $3.99 | one-time |


## Frequently asked questions

### Is Electrical Calculations free?

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

### Is RF calculator & Smith Chart free?

RF calculator & Smith Chart is free to download, with in-app purchases available.

### Do Electrical Calculations or RF calculator & Smith Chart have ads?

Electrical Calculations shows ads; RF calculator & Smith Chart does not.

### Which is updated more often, Electrical Calculations or RF calculator & Smith Chart?

Electrical Calculations ships an update every 2 weeks, and RF calculator & Smith Chart every 4 months. Most recently, Electrical Calculations was updated on October 24, 2026 and RF calculator & Smith Chart on October 22, 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.*