Yes, it is compatible with Google Home and the Alexa app.
Google Home instructions.
to Link and Unlink your account, you will go to the Google Home App, tap your account at the top, find services, search Tappecue, then Link your account.
Download Google Assistant from the Play Store for Android or the App Store for iOS
“Ask Tappecue Thermometer to Help Me” to login.
“Ask Tappecue Thermometer my temperatures”
“Get Current Sessions”
“Set TimeZone” “List of TimeZones”
Search Tappecue in the Skills section of your Alexa App and link your account.
"Alexa, Ask Tappecue Thermometer to get temperatures"