Privacy Policy

Home Display is a private dashboard used within a single household. This policy explains what information it uses and how.

Information accessed

With the household owner's consent, the app reads data from the owner's own Google Nest thermostat through Google's Smart Device Management API: the thermostat's name, current temperature, humidity, mode, heating or cooling status and target temperature. It can also change the target temperature and mode when the owner asks it to from the display.

How the information is used

This information is used only to show the thermostat's state and to send the owner's requested adjustments back to the thermostat. It is not used for advertising, analytics, profiling or any other purpose.

Storage and sharing

• Thermostat readings are held in memory to draw the display and are not kept as a history.
• The authorization token Google issues is stored privately on the household's own server so the display keeps working. It is never published.
• Information is not sold, shared, or disclosed to any third party.
• No information from Google user data is used to train AI or machine learning models.

Google API Services

The use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

Revoking access and deletion

The owner can revoke the app's access at any time at myaccount.google.com/permissions or through the Nest device sharing settings. Revoking access stops all data collection, and deleting the stored authorization token removes everything the app holds.

Changes

If this policy changes, the updated version will be posted on this page.