# iSlipstick RF vs SDR Gold

The clearest difference is update cadence: SDR Gold at every 3 weeks against iSlipstick RF's every 10 months. SDR Gold also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iSlipstick RF ships an update every 10 months, SDR Gold every 3 weeks. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | iSlipstick RF | SDR Gold |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/islipstick-rf/id351775311/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 43 MB | 62 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sam Virgillo](https://appshunter.io/developer/324560825) | [Aurify](https://appshunter.io/developer/1812159103) |

## What reviewers say

### iSlipstick RF

[App page](https://appshunter.io/ios/app/islipstick-rf/id351775311)

This app provides a comprehensive suite of calculators and converters specifically designed for radio frequency (RF) engineers and technicians. It includes tools for path loss, antenna gain, intermodulation, and standard electrical calculations, along with various unit conversions.

**Highlights:** RF-specific calculators, Standard electrical calculators, Unit converters, Path loss calculation, Intermodulation analysis, Antenna gain and beamwidth

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

**In-app purchases:** none


### SDR Gold

[App page](https://appshunter.io/ios/app/sdr-gold/id6670598838)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iSlipstick RF free?

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

### Is SDR Gold free?

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

### Do iSlipstick RF or SDR Gold have ads?

Neither iSlipstick RF nor SDR Gold shows ads.

### Which is updated more often, iSlipstick RF or SDR Gold?

iSlipstick RF ships an update every 10 months, and SDR Gold every 3 weeks. Most recently, iSlipstick RF was updated on November 1, 2026 and SDR Gold on November 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*