This info from mike SM2O
In 2018 we changed from our own licensing system to Google Play
To avoid that customer who has already paid once, have to pay again we use promotion codes
first uninstall the old App
go to the address below with your phone browser ( do NOT go to Google Play)
https://play.google.com/store?code. Use Chrome browser NOT Samsung browser
copy and enter your personal promotion code below and install the PRO App, allow the App to use the Mic and other things it ask for during the installation
you should not get problems anymore as the App now is connected to your Google Account as every other App
and if you want to install the PRO App on an second device you will find it in Google Play and it will show that it's already payed
73 de mike
promotion code= To request code send email to
info@microbit.sa