# RF vs Electrical Calculations

The clearest difference is price: Electrical Calculations at Free against RF's $7.99. Electrical Calculations also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (128 vs 22). RF's advantage is in-app purchases (none vs 3) and ads (none vs shown). On review sentiment and device support there is nothing between them.

Electrical Calculations is free to download; RF costs $7.99 up front. Electrical Calculations sells 3 in-app purchases, starting at $3.99 per 3 months. RF asks for nothing beyond the download.

RF holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Electrical Calculations has 128 ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 91% of RF's written reviews are positive against 87% of Electrical Calculations's.

RF ships an update every 4 months, Electrical Calculations every 3 weeks. The most recent releases landed on October 11, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | RF | Electrical Calculations |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[4.9 (22 ratings)](https://appshunter.io/ios/app/rf-toolbox-pro/id593044099/reviews)** | [4.6 (128 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews) |
| Number of ratings | 22 | **128** |
| Positive reviews | **91.1% of reviews** | 86.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 92 MB | 56 MB |
| Requires iOS | **11.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marcus Roskosch](https://appshunter.io/developer/334053438) | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) |

## What reviewers say

### RF

[App page](https://appshunter.io/ios/app/rf-toolbox-pro/id593044099)

This app provides over 90 specialized tools for high-frequency electronics, catering to RF professionals, radio amateurs, and students. It offers calculations for PCB traces, filters, impedance, and more, with ongoing updates and new features planned.

**Highlights:** PCB Trace Width and Impedance, LC/L/T/Pi Match Calculation, Coax Cable Calculations, Amplifier and Attenuator Cascade, SWR/Reflection/Return Loss Conversion, Filter Design (Butterworth, Chebyshev), RF Units Conversion

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is RF free?

RF costs $7.99, with no in-app purchases.

### Is Electrical Calculations free?

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

### Which has better reviews, RF or Electrical Calculations?

RF is rated higher. RF averages 4.9 out of 5 from 22 ratings, while Electrical Calculations averages 4.6 from 128 ratings.

### Do RF or Electrical Calculations have ads?

Electrical Calculations shows ads; RF does not.

### Which is updated more often, RF or Electrical Calculations?

RF ships an update every 4 months, and Electrical Calculations every 3 weeks. Most recently, RF was updated on October 11, 2026 and Electrical Calculations on October 20, 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.*