RST 599TK vs Morse Decoded
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RST 599TK
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.
- CW QSO simulation
- Electric Touch Keyer input
- Contest style QSO support
- CW Speed Control
- Min-in CW Decoder
- Shortcut keys for CQ and TU
Read full descriptionHide full description
This app is a real CW QSO simulator for Amateur Radio. "599BK & AADX Contest type QSO" is supported. Input of Morse Codes are by using Electric Touch Keyer. Changing of TX/RX is by SEND button. Supported Min-in CW Decoder too. 【Characteristic】 1. "599BK" and "Contest" style support. 2.Support the CW Speed Control, Reverse of Dot/Dash pad. 3.Status display showing TX / RX operation. 4.Support the space insertion operation both automatic and manual. 5.Support the Min-in CW Decoder function. 6.Support the shortcut-key of CQ and TU. CQ Button function can be set by setting menu. 7.Support the repeat-call function. It works only when the TU button is pressed at the end of the QSO. 8.Support input function by key button 【How to use】 1.The case of CQ Calling Press SEND button Input "CQ CQ DX DE (YOUR CALLSIGN) PSE K" by Touch Keyer. Press SEND button again 2.The case of CQ Answering Press SEND button Input "QRZ DX" by Touch Keyer or Straight Key. Press SEND button again --- Examples of QSO --- [CQ Calling] "CQ CQ DX DE xxnxx xxnxx PSE K" >>> xxnxx DE **n** K "**n** DE xxnxx UR RST 559 BK" >>> R MY RPT 559 UR RST 599 BK "QSL TU" >>> R 73 TU "E E" >>> E E [CQ Ansewing] "QRZ DX" >>> "CQ CQ DE **n** **n** PSE K" "**n** DE xxnxx K" >>> "xxnxx DE **n** UR RST 579 BK" "R **n** DE xxnxx UR RST 599 TU" >>> "R TU" "E E" >>> E E --- DETEC WORDS --- [CQ Calling] CQ CQ DX CQ NA CQ JA [CQ Ansewing] QRZ QRZ DX QRZ NA QRZ JA [BOTH] DE K BK UR RST 73 TU E E etc... 【Example usage video】 - Touch Keyer - https://www.youtube.com/watch?v=CuSEaJtD3KQ - Microphone IN Mode - https://www.youtube.com/watch?v=goN9hVDEGnM
Morse Decoded
Learn and practice Morse code with interactive stories and dedicated training modes for tapping, listening, and reading. Features adjustable difficulty, a text-to-Morse translator, and progress tracking with badges.
- Stories Mode for realistic transmissions
- Tapping, Listening, and Reading practice modes
- Adjustable WPM and Farnsworth timing
- Text-to-Morse translator
- Quick reference dictionary
- Progress tracking with badges and stats
Read full descriptionHide full description
Explore the communication style of the 19th and 20th centuries with a modern tool built for learning. • Stories Mode: Read and tap through practical stories. Get a sense of what it was like to send and receive realistic transmissions. • Practice Suite: Dedicated modes for Tapping (sending), Listening (receiving), and Reading (visual). • Adjustable Difficulty: Full control over WPM and Farnsworth timing so you can learn at your own pace. • Utilities: Includes a text-to-Morse translator and a quick reference dictionary. • Progress Tracking: Earn badges and see your stats improve over time.
Screenshots
Verdict
The clearest difference is rating: Morse Decoded at 5.0 against RST 599TK's 4.1. RST 599TK's advantage is in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 27 months). On price, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Morse Decoded sells 1 one-off in-app purchase. RST 599TK asks for nothing beyond the download.
Morse Decoded holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 9 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
RST 599TK ships an update every 6 weeks, Morse Decoded every 27 months. The most recent releases landed on August 22, 2026 and September 9, 2026 respectively.
| Parameter | RST 599TK | Morse Decoded |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (9 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 9 — better | 6 |
| Update frequency | Every 6 weeks — better | Every 27 months |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 36 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | koji kamogawa | Henry Abrahamsen |
Customer experience
RST 599TK
Morse Decoded
In-app purchases
RST 599TK
No in-app purchases
Morse Decoded
- Premium$0.99









