# RST 599TK vs SatNOGS

The clearest difference is rating: SatNOGS at 5.0 against RST 599TK's 4.1. SatNOGS also leads on ads (none vs shown) and monetization model (free vs ad-supported). RST 599TK's advantage is update cadence (every 6 weeks vs every 5 months). On price, ratings volume, 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.

SatNOGS holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 9 and 4 respectively.

RST 599TK ships an update every 6 weeks, SatNOGS every 5 months. The most recent releases landed on August 22, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | RST 599TK | SatNOGS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (9 ratings)](https://appshunter.io/ios/app/rst-599tk/id1510750204/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/satnogs/id1669797826/reviews)** |
| Number of ratings | **9** | 4 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | Ad-supported | **Free** |
| Size | 36 MB | 48 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [Victor Belov](https://appshunter.io/developer/1356487489) |

## What reviewers say

### RST 599TK

[App page](https://appshunter.io/ios/app/rst-599tk/id1510750204)

This application simulates Morse code communication for amateur radio operators. It supports various QSO styles, Morse code input via a touch keyer, and includes a CW decoder. Features allow for speed control, status display, and shortcut keys for common phrases.

**Highlights:** CW QSO simulation, Electric Touch Keyer input, Contest style QSO support, CW Speed Control, Min-in CW Decoder, Shortcut keys for CQ and TU

**In-app purchases:** none


### SatNOGS

[App page](https://appshunter.io/ios/app/satnogs/id1669797826)

Access a global network of satellite ground stations to communicate with satellites and observe their data. The platform is open to all, with public observation results freely distributed. Resources are available for building your own ground station.

**Highlights:** Global ground station network access, Remote ground station operation, Satellite communication, Public observation data access, Ground station building resources

**In-app purchases:** none


## Frequently asked questions

### Is RST 599TK free?

RST 599TK is free to download, with no in-app purchases.

### Is SatNOGS free?

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

### Which has better reviews, RST 599TK or SatNOGS?

SatNOGS is rated higher. RST 599TK averages 4.1 out of 5 from 9 ratings, while SatNOGS averages 5.0 from 4 ratings.

### Do RST 599TK or SatNOGS have ads?

RST 599TK shows ads; SatNOGS does not.

### Which is updated more often, RST 599TK or SatNOGS?

RST 599TK ships an update every 6 weeks, and SatNOGS every 5 months. Most recently, RST 599TK was updated on August 22, 2026 and SatNOGS on June 3, 2026.

---

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