Air quality information, on every device.

Breathable is a free AQI app and widgets for iPhone, iPad, Apple Watch, Apple Vision Pro and Mac. Multiple data sources, customizable widgets, and complete air quality history synced seamlessly across every one of your devices through iCloud.

Download on the App Store Download on the Mac App Store Completely Free · v4.0.2
Breathable Breathable
0–50Good 51–100Moderate 101–150Sensitive 151–200Unhealthy 201–300Very unhealthy 301+Hazardous

Version 4.0.2 is here! Trends, automatic location fetching, native Apple Vision Pro support, Siri and Shortcuts, and a ground-up rewrite on every platform.

Read the changelog

Features

Trends

Every reading ever taken, charted.

Breathable stores each AQI reading and syncs it across your devices via iCloud. Your historical data is available everywhere, charted and detailed. Observe trends, compare sources, and see how your air quality changes over time.

  • Filter by location, recording device, or data source
  • Tap any point for the full reading
  • All Data views for the granular records of every source, every device, every reading
The Trends tab showing an AQI history chart The Trends tab showing an AQI history chart
The Trends tab with an annotation The Trends tab with an annotation
The All Data view listing individual readings The All Data view listing individual readings
Location

Automatic, or exactly where you want to measure.

Turn on automatic location and your widgets follow you. Or, drop a pin, search an address, or type a postal code to get readings from anywhere in the world.

  • Automatic, accurate AQI data wherever you are
  • Drop a pin anywhere in the world to get a reading
  • Search by address, postal code or landmark
The Coordinates tab showing automatic location The Coordinates tab showing automatic location
The Coordinates tab with a custom location The Coordinates tab with a custom location
The Coordinates tab with a custom location The Coordinates tab with a custom location
Widgets

On every screen you use.

Desktop, Home Screen, Lock Screen, StandBy, on your Watch and now on your walls. Customizable, configurable, and always showing the most recent reading.

  • Custom fonts, toggleable data points, tint modes
  • Emoji Scale: pick an emoji for every AQI band
  • AQI in your room with Sky Windows and the Trophy on visionOS
The small widget on the Home Screen The small widget on the Home Screen
The medium widget on the Home Screen The medium widget on the Home Screen
The small widget on macOS desktop The small widget on macOS desktop
visionOS

Air quality with real volume.

We've brought Breathable to Apple Vision Pro, and added some special spatial features just for this platform. Sky Window hangs on your wall and shows current air conditions through a simulated window with real sun position, moon phase, time of day and volumetric light. Trophy is a fully interactive 3D object with day and night effects.

  • Fully native visionOS app with platform-exclusive features
  • Sky Window: a window to the world, with real sun, moon and volumetric light
  • Trophy: a 3D interactive object that shows the AQI in your room
The Trophy showing an AQI reading The Trophy showing an AQI reading
The Sky Window The Sky Window
Breathable on visionOS Breathable on visionOS
Siri

“What's the AQI in Breathable?”

Siri answers from the most recent reading and offers to fetch fresh data if necessary. On devices with a screen you get a full rendering of the AQI.

  • Ready for Siri AI: Ask any device for the AQI from Breathable
  • Shortcuts support for fetching AQI from Breathable
  • Build your own automations with Shortcuts and Siri to get AQI readings when you need them
Siri showing an AQI reading from Breathable Siri showing an AQI reading from Breathable
Building a Shortcut with Breathable Building a Shortcut with Breathable
A Shortcut to send a message based on a Breathable value A Shortcut to send a message based on a Breathable value
Privacy

We collect absolutely nothing.

Coordinates are sent directly to AQI services to request readings and nowhere else—never to Karbon or anyone else. Breathable requires data sharing, has no analytics, and there is no service or server of ours anywhere in the path. You don't even have to use your real location if you don't want to.

Data sources

ServiceCoverageInfo
IQAir Worldwide Aggregates government monitoring stations and validated low-cost sensors into a single global index.
PurpleAir Worldwide A community network of privately-owned sensors, often far denser than official stations in residential areas.
World Air Quality Index Worldwide A long-running open project publishing readings from thousands of government stations in over 100 countries.
AirNow.gov US Only The EPA's official index, combining federal, state, tribal and local monitoring across the US.

All four of these supported services offer completely free accounts with free API access for personal use. Configure one service—or as many as you'd like—then choose whether Breathable reports the highest reading found, the highest PM2.5-only reading, or prefer the service you trust most. Every source is normalized to the US AQI model, so the number always means the same thing.