Download Claus' Morse Code Trainer (Learn CW) APK v4.3

How to install Claus' Morse Code Trainer (Learn CW)?

Click on the saved APK file Claus' Morse Code Trainer (Learn CW).Since Android does not allow the installation of APKs from Unknown Sources, please do the following:
-> Open the file Claus' Morse Code Trainer (Learn CW) .apk, there will be a message like this one:



-> Click Settings (Settings).
-> Click the Turn button (Turn on).
-> Then go back and select the downloaded APK file. Click the Install button.

How to install OBB file?

+ First of all, please download the APK file of Claus' Morse Code Trainer (Learn CW) first.
+ Copy the APK file to your device's SD card and Install it. (Don't open it after installing)
+ Next, download the Obb file and copy the * .obb file named '' to the required location:
/ SDCARD / Android / obb / com.niesens.morsetrainer /
-> The full / absolute path of the obb file will look like this (Remember case sensitive):
If you don't have such a folder, create it manually on your SD card.