Download Music Interval App (Ear Training, Sight Singing) APK v3.03

How to install Music Interval App (Ear Training, Sight Singing)?

Click on the saved APK file Music Interval App (Ear Training, Sight Singing).Since Android does not allow the installation of APKs from Unknown Sources, please do the following:
-> Open the file Music Interval App (Ear Training, Sight Singing) .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 Music Interval App (Ear Training, Sight Singing) 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.kimheegwangsoft.intervalcalc /
-> 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.