Air Quality Index2.0.3 - App Store

Air Quality shows you what is actually in the air - where the smoke is, where it is heading, and what the air is like at any point on Earth you tap.

See the smoke before it arrives
A 48-hour NOAA HRRR forecast for the continental US and Alaska, hour by hour, at ground level and through the whole air column. Scrub the timeline and watch a plume move. Outside the US, Copernicus CAMS gives you five days of global smoke, dust, and haze.

Air quality across a whole country, not a scatter of dots
The US air quality map draws the hourly AQI as a continuous field from EPA AirNow, with a second layer for tomorrow’s forecast. Monitor readings ride on top as pins you can tap. Community sensor readings from OpenAQ cover the rest of the world.

A forecast anywhere, not just where a weather station is
Tap or press and hold any point on the map for a five-day air quality forecast - a stretch of coastline, a trailhead, a valley with nobody in it.

Layers you choose
. Ground-level and column smoke, 48 hours (NOAA HRRR)
. Global smoke, dust, haze, PM2.5 and aerosol, 5 days (Copernicus CAMS)
. US air quality index, now and tomorrow (EPA AirNow)
. EPA monitor readings and worldwide community sensors
. Active wildfires and satellite heat detections (NASA EONET, NASA FIRMS)
. Daily satellite photography (NASA GIBS)
. Volcanoes (Smithsonian Global Volcanism Program)
. Pollen forecasts for six species across Europe

On every screen you own
Widgets and complications for a glance. An Apple Watch app with the reading and a five-day chart. An interactive 3D globe on Apple Vision Pro. An ambient satellite flyover on Apple TV. Multiple windows, a sidebar and a menu bar item on Mac.

Free and private
No price, no subscriptions, no ads, no accounts. Your location is used to show you the air where you are and never leaves your device.

Data from NOAA, Copernicus Atmosphere Monitoring Service, EPA AirNow, NASA, OpenAQ, Open-Meteo and the Smithsonian Institution. Air quality data is provided as published and is not a substitute for official public health guidance.

Version History This update brings AQI up to date with Apple's newest platform releases. Everything's been rebuilt against the latest SDKs, so the app looks and behaves correctly on the latest system software…plus a handful of small fixes and performance improvements along the way. 2.0.3 Sep 11 Apple Watch
A new watch app shows the air quality where you are, with a five-day forecast on the next screen. Complications put the current reading on your watch face.

Widgets
Home Screen and Lock Screen widgets showing the current reading and what is coming.
A US air quality map, not just dots on one
“US Air Quality Index” draws the hourly AQI as a continuous field across North America, so you can see the shape of the air between the monitors rather than a scatter of pins. “US Air Quality Index Tomorrow” does the same for tomorrow’s forecast. Both come from EPA AirNow.
EPA monitor pins now come from our own service rather than a shared dataset. They load faster and are more current.

Fixes
• Smoke forecasts no longer drop the occasional blank hour.
• Satellite imagery no longer leaves a black band down the international date line.
• Background refresh is more reliable, so the map is current when you open it.

Free, as always: no accounts, no ads, no subscriptions. Your location never leaves your device. 2.0.2 Aug 22 Minor bug fixes around projection of the HRRR Smoke Tilesets 2.0.1 Aug 1 Finally: Worldwide Support!

New datasources added:
• Worldwide smoke, dust, and haze forecasts, with playback up to five days ahead.
• 48-hour Alaska smoke forecasts.
• NASA satellite imagery and active fire hotspot layers.
• Global air quality sensors, volcanoes, wildfire events, and European pollen forecasts.
• Five-day AQI forecasts for searched places, map locations, sensor stations, and your current location.
• Home Screen and Lock Screen AQI widgets for configurable locations.
• Climate and science resources, an in-app feedback form, and support for 36 languages.
• Improved accessibility with better VoiceOver support, Dynamic Type, larger controls, Reduce Motion support, and keyboard navigation.
• Improved map performance, forecast loading, animation, and handling of dense groups of map markers. 2.0 Jul 29 • Fixed an issue where the app could use excessive storage space over time
• The app now automatically removes old smoke overlay data to free up space

This update significantly reduces the app's storage footprint and improves overall performance. Users who were experiencing high storage usage should see immediate improvements after updating. 1.1.2 07/30/2025 Smoke overlay image download speed improvements. 1.1.1 08/24/2024 Updated support and bug fixes for surface smoke and vertically integrated smoke overlays. 1.1 02/01/2024 Bug fix to display the latest EPA AQI readings as map annotations. 1.0.1 07/28/2022 1.0 06/16/2022