Koch Morse Trainer Pro

169 reviews
Content rating
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About this app

Due to changes to the law, please read our privacy policy before purchasing this app.

Take your morse code to the next level with Koch Morse Trainer Pro. The only trainer that supports prosigns (procedural signals) and non-english extensions characters on Android.

Learn or improve your morse code in a short amount of time. The Koch method is designed to teach you morse at full speed. There's no need to learn at slow speeds then re-learn all the characters again once you increase your wpm.

If you wish to start off slow or simply want to pass your 5 wpm morse exam, this app has adjustable speeds to suit your needs.

KMT uses Farnsworth timings like the ARRL use for their transmissions and practice tapes. You can increase the gap between characters so you still learn them at full speed but not feel overwhelmed by the frequency they are sent.

Main Features:

✓ Character and word speeds are fully adjustable between 5 and 50 wpm
✓ Eight modes: random, 100 common words, 1000 common words, (German users can also select 100 and 1000 common German words), QSO (includes prosigns), callsign, morse abbreviations, custom text (which also allows you to input & practice prosigns also), and RSS Feeds
✓ Test yourself! Input what you're hearing and calculate your results to see how well you're doing
✓ Warm up feature which plays the latest character prior to the main session
✓ Character setup option screen to include/exclude characters, such as punctuation, prosigns and non-english characters - this also allows you to learn additional characters
✓ Adjustable group size with option to fix size in random mode
✓ Adjustable pre-session delay and session time (1 minute to 30 minutes)
✓ Adjustable tone frequency (200Hz - 2000Hz)
✓ Background noise (QRM) simulator
✓ Speak feature which tells you the latest character if text to speech is available
✓ Favour recent characters option for those new characters so they are played more often
✓ Display character before or after it's sent
✓ Plus lots of customisable options to change
Updated on
Feb 14, 2015

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

139 reviews
A Google user
January 17, 2019
This is a very comprehensive trainer, one I will enjoy using. My only issue is that the RSS feed output starts jumping from the top of the screen down to the bottom, then back up again between each word, once the text reaches the bottom of the window and has to start scrolling the visible window. This is stomach churning if you're trying to read while listening to the code. Otherwise, this is a really good tutor.
17 people found this review helpful
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February 28, 2023
It is an excellent app but only 30 minutes each time is a limitation. Can you please add the option to enter any duration? I would like to be able to just have it on in the background while I am working. (Or even go for a long walk without having to keep getting the phone out to restart it. Many thanks
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Mark Morgan
February 26, 2023
AF7KE. Been using the app for years to stay fresh. Love it. I love the Koch/Farnsworth and no ads. The screen jumping around when text hits the bottom is not good, maybe it can be fixed. I would say 5 stars if it was...
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What's new

Version 2.1.1

Fix: Focus not working in input window
Added: Setting to force soft keyboard to appear when input window is selected
Fix: LG devices with hardware menu button causing app to crash
Change: Noise level is now a slider