Koch Trainer3.5 - App Store
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Publisher Description
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,
Nick
N3WG
Version History Bug fixes for iOS 8 on iPhone. 3.5 10/03/2014 Bug fix for Display Played Morse Code switch. 3.4 06/02/2014 Fixed issue with lesson selection on iOS 7. 3.3 06/01/2014 Added QSO mode.
Made random callsigns more lifelike. 3.2 05/25/2014 Fixed issue with keyboard blocking the Play button on iPhone. 3.1 07/23/2013 * Morse is now generated on the fly, no more waiting for the entire string of morse code to be generated. Total word limit restriction removed since we're not relying on memory limits any more.
* Five second delay before starting code playing
* Callsigns mode added. 3.0 07/19/2013 Fixed landscape mode on iPad
Inserted short period of silence before playing code 2.4 07/04/2013 Added the ability to play random words. 2.3 03/18/2013 Added an Alert View to explain that no audio will play if the device is muted to address the negative reviews. 2.2 09/26/2012 Fixed the text for 90% proficiency in the Info view
Added some further explanation on the Info view
Cleaned up some UI issues, like scrolling the output field when the words run over the bottom edge. 2.1 05/09/2012 * Complete rewrite of how morse is generated, should fix crashes.
* Added the ability to specify the number of "words" to create. Words are random length, between 1 and 5 characters.
* Implemented save/restore of WPM, freq and words count.
* Got rid of pause button, now uses play button to start/pause/play
* Input fields use correct keyboard (number) now
* Save/restore for last lesson played
* Added rotation for iPad
*** If this version of the app crashed on you, please email me at n3wg@pignology.net. 2.0 03/10/2012 Bug fix for older devices 1.5 10/21/2011 v1.4:
Fixed bug in lessons displayed
Fixed bug in running out of memory when playing at a slow speed
v1.3:
Made app universal to support iPad natively.
Increased silence at beginning of audio stream when play is pushed to 3 seconds
Bug fix to increase stability
Doubled the number of words randomly generated 1.4 08/30/2011 Made app universal to support iPad natively.
Increased silence at beginning of audio stream when play is pushed to 3 seconds
Bug fix to increase stability
Doubled the number of words randomly generated 1.3 08/19/2011 * While morse is playing, the app disables the idle timer for locking the screen. 1.2 01/05/2011 Clear button added to scratchpad. 1.1 12/14/2010 1.0 11/30/2010
About Koch Trainer
The company that develops Koch Trainer is Pignology, LLC. The latest version released by its developer is 3.5.
To install Koch Trainer on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-15 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Koch Trainer as malware if the download link is broken.
How to install Koch Trainer on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Koch Trainer is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Koch Trainer is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 3.5
posted on 2026-10-15
Version History Bug fixes for iOS 8 on iPhone. 3.5 10/03/2014 Bug fix for Display Played Morse Code switch. 3.4 06/02/2014 Fixed issue with lesson selection on iOS 7. 3.3 06/01/2014 Added QSO mode.
Made random callsigns more lifelike. 3.2 05/25/2014 Fixed issue with keyboard blocking the Play button on iPhone. 3.1 07/23/2013 * Morse is now generated on the fly, no more waiting for the entire string of morse code to be generated. Total word limit restriction removed since we're not relying on memory limits any more.
* Five second delay before starting code playing
* Callsigns mode added. 3.0 07/19/2013 Fixed landscape mode on iPad
Inserted short period of silence before playing code 2.4 07/04/2013 Added the ability to play random words. 2.3 03/18/2013 Added an Alert View to explain that no audio will play if the device is muted to address the negative reviews. 2.2 09/26/2012 Fixed the text for 90% proficiency in the Info view
Added some further explanation on the Info view
Cleaned up some UI issues, like scrolling the output field when the words run over the bottom edge. 2.1 05/09/2012 * Complete rewrite of how morse is generated, should fix crashes.
* Added the ability to specify the number of "words" to create. Words are random length, between 1 and 5 characters.
* Implemented save/restore of WPM, freq and words count.
* Got rid of pause button, now uses play button to start/pause/play
* Input fields use correct keyboard (number) now
* Save/restore for last lesson played
* Added rotation for iPad
*** If this version of the app crashed on you, please email me at n3wg@pignology.net. 2.0 03/10/2012 Bug fix for older devices 1.5 10/21/2011 v1.4:
Fixed bug in lessons displayed
Fixed bug in running out of memory when playing at a slow speed
v1.3:
Made app universal to support iPad natively.
Increased silence at beginning of audio stream when play is pushed to 3 seconds
Bug fix to increase stability
Doubled the number of words randomly generated 1.4 08/30/2011 Made app universal to support iPad natively.
Increased silence at beginning of audio stream when play is pushed to 3 seconds
Bug fix to increase stability
Doubled the number of words randomly generated 1.3 08/19/2011 * While morse is playing, the app disables the idle timer for locking the screen. 1.2 01/05/2011 Clear button added to scratchpad. 1.1 12/14/2010 1.0 11/30/2010
version 3.5
posted on 2026-09-03
Version History This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
Bug fixes for iOS 8 on iPhone. 3.5 10/03/2014 Bug fix for Display Played Morse Code switch. 3.4 06/02/2014 Fixed issue with lesson selection on iOS 7. 3.3 06/01/2014 Added QSO mode.
Made random callsigns more lifelike. 3.2 05/25/2014 Fixed issue with keyboard blocking the Play button on iPhone. 3.1 07/23/2013 * Morse is now generated on the fly, no more waiting for the entire string of morse code to be generated. Total word limit restriction removed since we're not relying on memory limits any more.
* Five second delay before starting code playing
* Callsigns mode added. 3.0 07/19/2013 Fixed landscape mode on iPad
Inserted short period of silence before playing code 2.4 07/04/2013 Added the ability to play random words. 2.3 03/18/2013 Added an Alert View to explain that no audio will play if the device is muted to address the negative reviews. 2.2 09/26/2012 Fixed the text for 90% proficiency in the Info view
Added some further explanation on the Info view
Cleaned up some UI issues, like scrolling the output field when the words run over the bottom edge. 2.1 05/09/2012 * Complete rewrite of how morse is generated, should fix crashes.
* Added the ability to specify the number of "words" to create. Words are random length, between 1 and 5 characters.
* Implemented save/restore of WPM, freq and words count.
* Got rid of pause button, now uses play button to start/pause/play
* Input fields use correct keyboard (number) now
* Save/restore for last lesson played
* Added rotation for iPad
*** If this version of the app crashed on you, please email me at n3wg@pignology.net. 2.0 03/10/2012 Bug fix for older devices 1.5 10/21/2011 v1.4:
Fixed bug in lessons displayed
Fixed bug in running out of memory when playing at a slow speed
v1.3:
Made app universal to support iPad natively.
Increased silence at beginning of audio stream when play is pushed to 3 seconds
Bug fix to increase stability
Doubled the number of words randomly generated 1.4 08/30/2011 Made app universal to support iPad natively.
Increased silence at beginning of audio stream when play is pushed to 3 seconds
Bug fix to increase stability
Doubled the number of words randomly generated 1.3 08/19/2011 * While morse is playing, the app disables the idle timer for locking the screen. 1.2 01/05/2011 Clear button added to scratchpad. 1.1 12/14/2010 1.0 11/30/2010
version 3.5
posted on 2026-08-13
Version History This update from Apple will improve the functionality of this app. No new features are included.
Bug fixes for iOS 8 on iPhone. 3.5 10/03/2014 Bug fix for Display Played Morse Code switch. 3.4 06/02/2014 Fixed issue with lesson selection on iOS 7. 3.3 06/01/2014 Added QSO mode.
Made random callsigns more lifelike. 3.2 05/25/2014 Fixed issue with keyboard blocking the Play button on iPhone. 3.1 07/23/2013 * Morse is now generated on the fly, no more waiting for the entire string of morse code to be generated. Total word limit restriction removed since we're not relying on memory limits any more.
* Five second delay before starting code playing
* Callsigns mode added. 3.0 07/19/2013 Fixed landscape mode on iPad
Inserted short period of silence before playing code 2.4 07/04/2013 Added the ability to play random words. 2.3 03/18/2013 Added an Alert View to explain that no audio will play if the device is muted to address the negative reviews. 2.2 09/26/2012 Fixed the text for 90% proficiency in the Info view
Added some further explanation on the Info view
Cleaned up some UI issues, like scrolling the output field when the words run over the bottom edge. 2.1 05/09/2012 * Complete rewrite of how morse is generated, should fix crashes.
* Added the ability to specify the number of "words" to create. Words are random length, between 1 and 5 characters.
* Implemented save/restore of WPM, freq and words count.
* Got rid of pause button, now uses play button to start/pause/play
* Input fields use correct keyboard (number) now
* Save/restore for last lesson played
* Added rotation for iPad
*** If this version of the app crashed on you, please email me at n3wg@pignology.net. 2.0 03/10/2012 Bug fix for older devices 1.5 10/21/2011 v1.4:
Fixed bug in lessons displayed
Fixed bug in running out of memory when playing at a slow speed
v1.3:
Made app universal to support iPad natively.
Increased silence at beginning of audio stream when play is pushed to 3 seconds
Bug fix to increase stability
Doubled the number of words randomly generated 1.4 08/30/2011 Made app universal to support iPad natively.
Increased silence at beginning of audio stream when play is pushed to 3 seconds
Bug fix to increase stability
Doubled the number of words randomly generated 1.3 08/19/2011 * While morse is playing, the app disables the idle timer for locking the screen. 1.2 01/05/2011 Clear button added to scratchpad. 1.1 12/14/2010 1.0 11/30/2010
version 3.5
posted on 2014-10-03
Oct 3, 2014 Version 3.5
Bug fixes for iOS 8 on iPhone.
version 3.5
posted on 2014-10-03
Oct 3, 2014 Version 3.5
This app has been updated by Apple to use the latest Apple signing certificate.
Bug fixes for iOS 8 on iPhone.
version 3.5
posted on 2014-10-03
Oct 3, 2014
Version 3.5
This app has been updated by Apple to display the Apple Watch app icon.
Bug fixes for iOS 8 on iPhone.
version 3.5
posted on 2014-10-03
This app has been updated by Apple to display the Apple Watch app icon.
Bug fixes for iOS 8 on iPhone.
version 3.5
posted on 2010-11-30
version 3.5
posted on 1970-01-01
2014年10月3日 Version 3.5
This app has been updated by Apple to use the latest Apple signing certificate.
Bug fixes for iOS 8 on iPhone.
Disclaimer
Official App Store Link
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