The app is hardly responding to commands. Hardly opening. I m using a samsung s20 ultra 16gb ram. It takes almost 20seconds to get the temperature from the termostat. If you want to stop eco or turn heat you have to re-do this action couple of times till the action is executed. In the past( more than 1 year...it was fast responsive). The app is updated,also the android has the latest updates. The device has 5.9.5-2 latest.