Sometimes it works! Sometimes it doesn't. Some of the light switches are shown offline after a wifi restart. Air conditioning doesn't connect at all, even if it's made by Samsung. Poor app. I will stick to Smart Life app. This one has way too many bugs to make it useful. Try to fix this first: Nest Learning Thermostat consistently showed as offline. Temperature even it's set as C in Nest, shows as C under Heating temperature and as F under Temperature.