Gen 4 vs. Gen 3 nest app

[Fll1225]

I have 10 nest learning thermostat all Gen 3, in 2 different homes. I have been using the nest app to control everything and I'd like to keep it that way. I've just bought 4 Gen 4 thermostats as this is all I could find locally. Im reading now that I have to use the  Google home app and the gen4 won't work with the nest app. Is this true? Had anyone successfully linked a Gen 4 to their nest app. Thank you 

[David_K]

@Fll1225 

Nest Learning Thermostat (4th gen) is designed for and setup exclusively with the Google Home app, you cannot add it to the Nest app. 

When you install the Nest Learning Thermostat (1st, 2nd, or 3rd gen) or the Nest Thermostat E in the Nest app, the thermostat should automatically appear in the Google Home app if you’re using the same account in both apps, using the same home structure, and have assigned the thermostat to a room in the Nest app. Therefore, once setup you should also be able to manage those thermostat models in the Google Home app as well.