Our first app is

Localsend

On pc  https://localsend.org/

On Andoid mobiles 

https://play.google.com/store/apps/details?id=org.localsend.localsend_app

This app uses WiFi ,no cables ,hassles and faster than Bluetooth

You only need to connect sll devices to the same WiFi

Our only note is that, the application uses the maximum permitted WiFi bandwidth which is fine,

But it also uses so much power which may be questionable ?