I belueve it's both an app and drive install. App for setting sensibo authorisation and driver for the thermostat device.. However I'm no expert so I could be wrong.
I'm using blink driver from somewhere on the thread below. Mainly because it worked with the tiles... However I had to do the trick to make it work in a tile seeing these drivers in this thread have not been in development for a while.
However they have been working.. If I was going to reinstall sensibo devices I'd be using the driver from the link above. Edit: Seems the app above onky creates a switch... So maybe the versions in the thread below may still be worth a look... Although keep in mind you need to update the modes as per the bottom link.
Place where I found the work around for dated drivers