The Paku logo, an icon that represents wind

Paku for PurpleAir

Keep an eye on air quality with widgets, alerts, and more.


Download on the App Store
A MacBook, iPad, iPhone and Apple Watch all running Paku, an air quality app.
Screenshot showing a map of San Francisco with PurpleAir sensors showing air quality on the map.

Like a breath of fresh air

Fast and lightweight, Paku loads every PurpleAir sensor on the map instantly.

Gorgeous Charts and Widgets

See how air quality, temperature, and humidity are trending with up to one week of historical data.

Screenshot of chart widgets on the iOS home screen for AQI, temperature, and raw PM10.0.
Screenshot of an iPhone lock screen with a notification regarding bad air quality from Paku.

Stay In-the-Know

Set up alerts and get real-time notifications when air quality goes south.

Everything Else

Favorites. Private sensors. watchOS and macOS support. Paku can do it all. Missing a feature you’d like? Reach out ↗


Download on the App Store
Screenshot of a favorites list that displays data from favorited sensors.

In the Press

The Washington Post
Best apps to check air quality near you ↗ and how to choose the best weather app ↗

MacStories
Hyper-Local Air Quality Tracking on Every Apple Platform ↗

SixColors
Getting a handle on outdoor air quality ↗

Macworld
The best apps with Lock Screen widgets ↗

MacRumors
Apps that have added iOS 16 Lock Screen widget support ↗

PurpleAir Blog
The Paku App: View PurpleAir Air Quality Data ↗

Berkeley Air
Paku has revolutionized PurpleAir ↗

Apple Developer
How Paku on Apple Watch helps people breathe easy ↗

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