Comparison

RST 599TK vs Morse Decoded

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read 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

About

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.

Highlights
  • 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
Features
Read 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

RST 599TK4 screens
Morse Decoded4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Morse Decoded sells 1 one-off in-app purchase. RST 599TK asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
RST 599TK versus Morse Decoded: the parameters behind the verdict, then further details
ParameterRST 599TKMorse Decoded
PriceFreeFree
Rating4.1 (9 ratings)5.0 (6 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings9 — better6
Update frequencyEvery 6 weeks — betterEvery 27 months
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.1
Further details — not scored
Size36 MB47 MB
Age rating4+4+
Developerkoji kamogawaHenry Abrahamsen

Customer experience

RST 599TK

All ratings9 ratings
Positive77.8%
Neutral11.1%
Negative11.1%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Morse Decoded

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RST 599TK

No in-app purchases

1 purchases

Morse Decoded

One-time1
  • Premium$0.99

Questions

Is RST 599TK free?
RST 599TK is free to download, with no in-app purchases.
Is Morse Decoded free?
Morse Decoded is free to download, with in-app purchases available.
Which has better reviews, RST 599TK or Morse Decoded?
Morse Decoded is rated higher. RST 599TK averages 4.1 out of 5 from 9 ratings, while Morse Decoded averages 5.0 from 6 ratings.
Do RST 599TK or Morse Decoded have ads?
Both RST 599TK and Morse Decoded show ads.
Which is updated more often, RST 599TK or Morse Decoded?
RST 599TK ships an update every 6 weeks, and Morse Decoded every 27 months. Most recently, RST 599TK was updated on August 22, 2026 and Morse Decoded on September 9, 2026.

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