# IMPULSE Wireless vs SDR Gold

The clearest difference is update cadence: SDR Gold at every 3 weeks against IMPULSE Wireless's every 2 months. SDR Gold also leads on iOS requirement (12.0 vs 16.1). On price, ads, in-app purchases and device support there is nothing between them.

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

IMPULSE Wireless ships an update every 2 months, SDR Gold every 3 weeks. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | IMPULSE Wireless | SDR Gold |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 20 MB | 62 MB |
| Requires iOS | 16.1 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Invisible Communications](https://appshunter.io/developer/1459581775) | [Aurify](https://appshunter.io/developer/1812159103) |

## What reviewers say

### IMPULSE Wireless

[App page](https://appshunter.io/ios/app/impulse-wireless/id1459581806)

**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 IMPULSE Wireless free?

IMPULSE Wireless 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 IMPULSE Wireless or SDR Gold have ads?

Neither IMPULSE Wireless nor SDR Gold shows ads.

### Which is updated more often, IMPULSE Wireless or SDR Gold?

IMPULSE Wireless ships an update every 2 months, and SDR Gold every 3 weeks. Most recently, IMPULSE Wireless was updated on October 2, 2026 and SDR Gold on October 4, 2026.

---

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