Morse! vs RST 599TK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Morse!
Learn and practice Morse code with this educational app. It uses your phone's torch or screen to flash messages, with options for repeating, SOS signals, and low-power mode. Designed for fun and learning, not emergencies.
- Learn Morse code
- Flash messages with torch or screen
- Repeat messages
- SOS signal by shaking
- Low power mode
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Morse! is a fun and educational app to help you learn and use morse code. Utilising your phone’s torch, or display, you can easily type in a message and set it to ‘flash’ your message in morse code. Features include: - automatically repeat your message once, multiple times, or indefinitely - select either your torch or screen to broadcast your message - simply shake the phone to start broadcasting SOS Morse! also functions in low power mode by restricting the output to the device screen and only broadcasting your message once. Please note this application is meant for fun or educational purposes and should not be viewed as something to rely on should you require emergency assistance or rescuing. Also due to the nature of your phone’s torch, continued use may have an impact on your battery life.
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
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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
Screenshots
Verdict
The clearest difference is rating: RST 599TK at 4.1 against Morse!'s 3.0. RST 599TK also leads on update cadence (every 6 weeks vs every 8 months) and ratings volume (9 vs 2). Morse!'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
RST 599TK holds the better App Store score, 4.1 against 3.0. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Morse! ships an update every 8 months, RST 599TK every 6 weeks. Both last shipped on October 24, 2026.
| Parameter | Morse! | RST 599TK |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.1 (9 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 9 — better |
| Update frequency | Every 8 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 19 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Pixadecimal | koji kamogawa |
Customer experience
Morse!
RST 599TK
In-app purchases
Morse!
No in-app purchases
RST 599TK
No in-app purchases
