Coming to the App Store โ€” August 2026

Open your windows when outside is perfect.

Skip the heater or AC. Good Air Day watches temperature, humidity, dew point, wind, air quality, and pollen โ€” then pings you when the air is right.

Get notified at launch

Free on iPhone. United States only at launch.

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Personalized to you

Set your comfort preferences and any sensitivities โ€” allergies, asthma, smoke. Recommendations adjust to what matters for your air.

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Pinged at the right moment

A notification when conditions turn good, and another when it's time to close up. No dashboards to check. No guessing.

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Fresh air, lower bills

When outside is better than inside, your windows beat your thermostat. Use the free option first.

How it works

STEP 1

Enter your ZIP

We pull hyperlocal weather, air quality, and pollen for your neighborhood.

STEP 2

Set your preferences

Comfort range, health sensitivities, quiet hours. Thirty seconds, once.

STEP 3

Get pinged when the air is right

Open windows. Good to open. Keep closed. A clear verdict, and the why behind it.