Manage Activity History logging for Adaptive Temperature in the Home app
Starting in iOS 26, Adaptive Temperature adjusts your supported thermostat automatically when at least one person is home or when the last person leaves. These states are logged in Activity History.
How Adaptive Temperature uses Activity History
Adaptive Temperature was designed to automatically adjust your thermostat, while also protecting your privacy. When the feature is turned on, your compatible thermostat adjusts automatically based on whether a member or guest of the home is at home.
To do this, the Home app instructs the thermostat to adjust temperature based on the home’s activity state: “home” state (when at least one person is home), “away” state (when no one is home), or “extended away” state (when in “away” state for longer than 24 hours or if every member of the home is a certain distance away). Your location isn’t shared with the thermostat or with Apple.
When your thermostat automatically adjusts, the Home app’s Activity History logs the change:
Activity History logs when the home’s activity state changes — but does not identify a specific individual as arriving, leaving, or being at home.
If you also turn on Predict Arrival — which uses daily routines, Apple Maps, Calendar, and more to predict arrivals and automatically precondition to your chosen At Home temperature range — Activity History might also log when the home’s activity state changes because the first person is expected to arrive home.
Apple does not get access to the home’s activity state or the Activity History logs from the Home app.
If you don’t want Adaptive Temperature to log arriving and leaving
Only the home owner or a resident with permission to add and edit accessories can turn Adaptive Temperature, Predict Arrival, or Activity History on and off.
For home owners and residents with permission to add or edit accessories
You can turn off Activity History to stop the Home app from logging the home’s activity state. Alternatively, you can turn off Adaptive Temperature or Predict Arrival.
Turn off Activity History
Open the Home app on your iPhone, iPad, or Mac.
Select the More button, select Home Settings, then select Activity.
Turn Activity History off.
When you turn off Activity History, you no longer see the previous month’s activity and the associated data is deleted.
For residents or guests
As a resident without access to add or edit accessories or as a guest, you can’t turn off Adaptive Temperature. However, you can stop your device from sharing its location with the Home app.
Stop sharing your device’s location with the Home app
Go to Settings > Privacy & Security > Location Services.
Tap System Services, then turn off Home.
This action prevents Home from accessing System Services and using your location to communicate to Adaptive Temperature whether you are home, away, or on the way home. It also affects all HomeKit features that access your location from Location Services.