Koch Trainer is a morse code trainer that uses the Koch Method developed by the German psychologist Ludwig Koch in the 1930's. The method basically states that you should learn morse code at the speed you expect to receive, by training your reflexes to respond to code sent at 20 WPM you'll learn the code much faster.

Thank you and 73,

What's New

Version 3.5

Bug fixes for iOS 8 on iPhone.

Ratings and Reviews



Great app, simple and effective. May I suggest a feature please? When using the scratch pad to record what you hear, it would be great to get an accuracy measurement for the lesson completed. Many thanks, Brian.

Good but needs some more work


This app is good for learning morse with the Koch method but has a few small issues. I cannot use the scratch pad that it offers as the screen that off the scratch pad doesn't have a play button. This means that by the time you have selected play on the first menu and switched to scratch pad and brought up the keyboard you have already missed the first few letters. Most annoyingly it launches straight into the test without showing you what your are listening for. This meant that I had to have a morse alphabet sheet and get to grips with what I would be listening out for before launching the test. It would be far better for beginners if it initial,y showed you what the test letters sounded like. For example, session one teaches M and K. In my first attempt it was obvious from listening that there were two distinct letters being sounded but had to refer to my chart to relate the two sounds to the two letters. If it first showed you aurally what M and K sounded like, I wouldn't have needed a printed sheet. All said and done though, this is a good app but needs some work.

Not fully working on iPhone with iOS 8


Unable to change the lesson number using an iPhone with iOS 8.
Works ok with an iPad on iOS 8 though, hope the iPhone version gets fixed soon :)


Pignology, LLC
6.7 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© Pignology, LLC


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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