# RST 599 vs MorseFlash Generator

The clearest difference is update cadence: MorseFlash Generator at every 2 weeks against RST 599's every 2 months. 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.

RST 599 ships an update every 2 months, MorseFlash Generator every 2 weeks. The most recent releases landed on October 21, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | RST 599 | MorseFlash Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/rst-599/id1488919851/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 41 MB | 4 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [SHINICHI OKAMOTO](https://appshunter.io/developer/1184823568) |

## What reviewers say

### RST 599

[App page](https://appshunter.io/ios/app/rst-599/id1488919851)

This application simulates amateur radio CW QSOs with realistic call signs, signal levels, and CW speeds. It supports various QSO styles, including contest and rubber stamp types, with adjustable settings for a personalized training experience.

**Highlights:** Multiple QSO styles supported, Realistic signal meter, Spectrum scope display, Adjustable CW speed and call sign, Pile-up simulation, QRN presence toggle

**Features:** macOS Compatibility

**In-app purchases:** none


### MorseFlash Generator

[App page](https://appshunter.io/ios/app/morseflash-generator/id6503596500)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RST 599 free?

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

### Is MorseFlash Generator free?

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

### Do RST 599 or MorseFlash Generator have ads?

Both RST 599 and MorseFlash Generator show ads.

### Which is updated more often, RST 599 or MorseFlash Generator?

RST 599 ships an update every 2 months, and MorseFlash Generator every 2 weeks. Most recently, RST 599 was updated on October 21, 2026 and MorseFlash Generator on October 5, 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.*