Comparison

Morse code for ham radio vs RST Decoder

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

Head to head
About

Morse code for ham radio

Learn the fundamental method of communication using dots and dashes. This tool is ideal for hobbyists and those involved in disaster relief or educational exchanges.

Highlights
  • Learn Morse code
  • Dots and dashes
  • Telegraph code prototype
  • Hobbyist communication
  • Disaster relief tool
  • Educational purposes
Features
Read full description

Morse code is a method of writing letters. With the dots and dashes Which was used as a prototype to demonstrate the telegraph code. To communicate with Morse code is often used in hobby and service areas such as disaster relief, educational purposes or to provide assistance and the exchange of ideas and so on.

About

RST Decoder

This application decodes Morse code from your microphone, acting as a practice tool to verify your keying accuracy. It offers advanced features like BPF and FFT decoders with automatic frequency and gain control, allowing for fine-tuning of reception parameters.

Highlights
  • Microphone Morse code decoding
  • Morse practice and keying check
  • BPF and FFT decoder options
  • Auto Frequency Detector (AFD)
  • Auto Gain Control (AGC)
  • Real-time CW signal display
  • Input signal recording/playback
Read full description

This is an App that decodes Morse code input from the microphone. It is a Morse practice App that you can use to check if you are keying the correct code. Signals with good S/N can be decoded correctly, but signals with bad S/N cannot be decoded correctly. Also, the performance will be degraded for extremely slow or fast signals. Usually about 5 to 10 characters are required for speed synchronization of Morse Code. Adjust the input signal so that the peak value changes from level 6 to level 7. Make fine adjustments to each parameter according to the reception status. [Additional Functions] -In addition to the decoder using BPF, a new decoder using FFT has been added so that it can be switched according to the usage. -AFD (Auto Frequency Detector) function has been added to the decoder using BPF, and BPF can be set automatically by pressing the AFD button. -The decoder using FFT automatically follows the strongest signal in the band by AFD (Auto Frequency Detector) and AGC (Auto Gain Control). You can also hold the AFD / AGC parameters by pressing the Lock button. * There will be a time lag of about 1 to 2 seconds for AFD tracking. [Control parameters] 1. Audio Input Level 2.BPF ON/OFF 3.BPF of Center Frequency 4.BPF of Band Width 5.CW Speed Control ON/OFF 6.CW Speed Control Low, Mid1, Mid2 or High 7.Delete All Decoded Text 8.Realtime CW Signal Display 9.Input signal recording / playback function *Japanese/KANA text is not supported. [Note] Since the signal after BPF is output to the audio output, it can also be used as an AF-CW filter. [URL of this App working example video] https://youtu.be/Pwp7W4m-m34

Screenshots

Morse code for ham radio3 screens
RST Decoder4 screens

Verdict

The call

The clearest difference is review sentiment: RST Decoder at 67% against Morse code for ham radio's 21%. RST Decoder also leads on rating (5.0 vs 1.9) and update cadence (every 2 months vs every 10 months). Morse code for ham radio's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

RST Decoder holds the better App Store score, 5.0 against 1.9. Both are backed by a comparable volume of ratings — 7 and 7 respectively. Written reviews point the same way: 21% of Morse code for ham radio's written reviews are positive against 67% of RST Decoder's.

UpkeepUpdate frequency

Morse code for ham radio ships an update every 10 months, RST Decoder every 2 months. The most recent releases landed on September 30, 2026 and September 27, 2026 respectively.

Scorecard7 real differences · 3 level
Morse code for ham radio versus RST Decoder: the parameters behind the verdict, then further details
ParameterMorse code for ham radioRST Decoder
PriceFreeFree
Rating1.9 (7 ratings)5.0 (7 ratings) — better
Positive reviews21.4% of reviews66.7% of reviews — better
Number of ratings77
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better17.0
Further details — not scored
Size12 MB6 MB
Age rating4+17+
DeveloperSurasak Khanchaiyaphumkoji kamogawa

Customer experience

Morse code for ham radio

All ratings7 ratings
Positive14.3%
Neutral0.0%
Negative85.7%
Written reviews28 reviews
Positive21.4%
Neutral3.6%
Negative75.0%

RST Decoder

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Morse code for ham radio

No in-app purchases

None

RST Decoder

No in-app purchases

Questions

Is Morse code for ham radio free?
Morse code for ham radio is free to download, with no in-app purchases.
Is RST Decoder free?
RST Decoder is free to download, with no in-app purchases.
Which has better reviews, Morse code for ham radio or RST Decoder?
RST Decoder is rated higher. Morse code for ham radio averages 1.9 out of 5 from 7 ratings, while RST Decoder averages 5.0 from 7 ratings.
Do Morse code for ham radio or RST Decoder have ads?
RST Decoder shows ads; Morse code for ham radio does not.
Which is updated more often, Morse code for ham radio or RST Decoder?
Morse code for ham radio ships an update every 10 months, and RST Decoder every 2 months. Most recently, Morse code for ham radio was updated on September 30, 2026 and RST Decoder on September 27, 2026.

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