Runner on trail at golden hour

Find your best outdoor window.

Weather comes from Apple WeatherKit on your iPhone. AQI is evaluated with US AQI guidance and visible source attribution.

Coming soon to the App Store
US AQI

WeatherKit + Open-Meteo AQI

GoWindow can request AQI for global coordinates and interprets air quality with the US AQI scale for exercise guidance.

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On-device WeatherKit weather

Your iPhone gets weather directly from Apple WeatherKit with no weather relay through our backend.

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US AQI risk bands

Air quality is interpreted with US AQI categories for outdoor exercise decisions.

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AQI confidence + source

Each AQI readout includes provider attribution and confidence language for modeled conditions.

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Window-first UX

Open the app and get the best two-hour outdoor window without chart hunting.

Data pipeline transparency

Weather path

Precise location stays on-device for Apple WeatherKit weather fetches.

AQI path

Coordinates are sent to the GoWeather backend only to request AQI from the active air-quality provider.

Provider attribution

MVP AQI defaults to Open-Meteo where available; provider labels and links are shown in-app.

How it works

1

Allow location on your iPhone

GoWindow uses location permission for on-device WeatherKit weather and local AQI lookups.

2

Fetch weather + AQI context

Weather is fetched directly with WeatherKit, while backend AQI requests use coordinates only for air quality.

3

Follow your window

See your ranked outdoor window with AQI confidence and source details.

AQI confidence note

AQI can be modeled and station coverage varies by area. GoWindow shows provider attribution and favors conservative guidance when confidence is lower.