# rtl_tcp SDR vs RSS Radar

The clearest difference is price: RSS Radar at $7.99 against rtl_tcp SDR's $12.99. RSS Radar also leads on device support (4 vs 2) and iOS requirement (14.2 vs 16.6). On update cadence, ads and in-app purchases there is nothing between them.

rtl_tcp SDR costs $12.99 and RSS Radar $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

rtl_tcp SDR ships an update every 4 months, RSS Radar every 3 months. The most recent releases landed on October 19, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | rtl_tcp SDR | RSS Radar |
| --- | --- | --- |
| Price | $12.99 | **$7.99** |
| Rating | **[3.9 (32 ratings)](https://appshunter.io/ios/app/rtl-tcp-sdr/id1351164646/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 3 MB | 114 MB |
| Requires iOS | 16.6 | **14.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [HotPaw Productions](https://appshunter.io/developer/285074853) | [Dejan Petrovic](https://appshunter.io/developer/1740923045) |

## What reviewers say

### rtl_tcp SDR

[App page](https://appshunter.io/ios/app/rtl-tcp-sdr/id1351164646)

This app acts as a software-defined radio receiver for iOS devices, allowing you to listen to various radio signals and view RF spectrum data. It connects to external SDR peripherals via a network protocol, requiring a separate server setup.

**Highlights:** Listen to AM, FM, SSB, CW signals, View RF spectrum and waterfall, Connect to networked RTL-SDR peripherals, Supports Airspy HF+, SDRPlay, LimeSDR Mini, Direct connection to Hermes Lite 2

**Features:** Vision Pro support

**In-app purchases:** none


### RSS Radar

[App page](https://appshunter.io/ios/app/rss-radar/id6496271582)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is rtl_tcp SDR free?

rtl_tcp SDR costs $12.99, with no in-app purchases.

### Is RSS Radar free?

RSS Radar costs $7.99, with no in-app purchases.

### Do rtl_tcp SDR or RSS Radar have ads?

Neither rtl_tcp SDR nor RSS Radar shows ads.

### Which is updated more often, rtl_tcp SDR or RSS Radar?

rtl_tcp SDR ships an update every 4 months, and RSS Radar every 3 months. Most recently, rtl_tcp SDR was updated on October 19, 2026 and RSS Radar on October 6, 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.*