# MorseKey vs RST 599TK

The clearest difference is ads: MorseKey at none against RST 599TK's shown. MorseKey also leads on rating (4.5 vs 4.1) and monetization model (free vs ad-supported). RST 599TK's advantage is review sentiment (100% vs 67%) and update cadence (every 6 weeks vs every 12 months). On price, 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.

MorseKey holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 28 and 9 respectively. Written reviews complicate that: 67% of MorseKey's written reviews are positive against 100% of RST 599TK's, so the app with the better star average is not the one people write more warmly about.

MorseKey ships an update every 12 months, RST 599TK every 6 weeks. The most recent releases landed on September 18, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | MorseKey | RST 599TK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (28 ratings)](https://appshunter.io/ios/app/morsekey/id312260358/reviews)** | [4.1 (9 ratings)](https://appshunter.io/ios/app/rst-599tk/id1510750204/reviews) |
| Number of ratings | **28** | 9 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 6 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 0 MB | 36 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HotPaw Productions](https://appshunter.io/developer/285074853) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## What reviewers say

### MorseKey

[App page](https://appshunter.io/ios/app/morsekey/id312260358)

Practice sending Morse Code with this simple touchscreen keyer. Adjust tone frequency and volume, or use the iambic keyer for speed training. Ideal for learning and practicing Morse Code transmission.

**Highlights:** Touchscreen Morse code key, Adjustable tone frequency, Adjustable volume, Iambic keyer (mode A), Adjustable dot speed

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is MorseKey free?

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

### Is RST 599TK free?

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

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

MorseKey is rated higher. MorseKey averages 4.5 out of 5 from 28 ratings, while RST 599TK averages 4.1 from 9 ratings.

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

RST 599TK shows ads; MorseKey does not.

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

MorseKey ships an update every 12 months, and RST 599TK every 6 weeks. Most recently, MorseKey was updated on September 18, 2026 and RST 599TK on August 22, 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.*