In case you face any issues with Isokratis Piano update, please follow the following:

 

1. If the update doesn't appear in the Store app in your computer:

Go to Store -> Settings -> App updates -> click "Check for updates"

 

2. If the app is not functional after update:

Go to Store -> Settings -> App updates -> App licenses -> click "Sync licenses"

or

Uninstall and install again Isokratis Piano app.

 

If there are any further issues, please contact us at panayiotis [dot] apps {at} gmail.com