Predict
Timing, not guesswork
Forecast-driven crossings from your local hourly weather. Alerts land at the moment the timing changes, not on a fixed schedule.
Thresho reads your local hourly forecast, predicts when the outdoor temperature crosses your comfort thresholds, and tells you the right moment to open or close your windows. When the air outside is unhealthy, it holds the open-windows alerts automatically.
California only · iPhone · free · no account required
Forecast-driven crossings from your local hourly weather. Alerts land at the moment the timing changes, not on a fixed schedule.
When local AQI is unhealthy, Thresho holds the open-windows alerts so you are not invited to let bad air in.
No account, no tracking, no servers. Your rules and your location stay on your device.