Cool your home on timing, not AC.
Thresho tells you the right moment to open or close your windows to keep your home cool without reaching for the AC. When the air quality is poor, it holds the open-windows alert. iPhone, US, free beta.
Open this on your iPhone. The link opens TestFlight to install the beta; on a computer it shows Apple's join page.
iPhone · iOS 17 or later · US only · free beta
How to join
Install TestFlight
Install TestFlight, free, from the App Store.
Open the beta link
On your iPhone, tap Join the beta above.
Accept and install
Tap Accept, then Install.
Set up Thresho
Open Thresho, grant location and notifications, and set your home.
One glance should tell you what to do, open, close, or wait. Alerts should arrive a little before the change. Act on them and tell us what works.
Forecasts can be wrong, delayed, or unavailable. Always check real conditions and use your own judgment. Do not rely on Thresho for health, safety, or emergency decisions.