In order to install the app on your 3rd party AOSP box you will need 1 of 3 main applications:

Internet browser, file manager, or app installer In most cases, those apps are factory-preinstalled on Your box. (We recommend using the mouse option for easy navigation)

Open the web browser on Your device and type in the following link
in the URL field: bit.ly/polixott
Open it
Click on OK to allow the web browser to keep the application file.
Click OPEN to start the installation process.
All steps are shown in video #1

Video #2 and #3 show You a different way of running the installation file:
Through APP installer or by using the FILE MANAGER.

If you have trouble launching the application, please refer to video #4 -
it will show how to grant proper permissions.