Paku
Paku is a Mac air quality app that shows live AQI, wildfire smoke, and nearby sensor readings from PurpleAir, AirGradient, and AirNow.
What is Paku?
Paku is a weather app for Mac that helps people monitor local air quality, wildfire smoke, and nearby particulate readings in real time. It is designed for users who want more detailed air information than a citywide AQI estimate, including people tracking outdoor conditions for exercise, commuting, children, pets, or smoke events. On Mac, Paku can place a live reading in the menu bar for quick at-a-glance checks, while the main app provides a map of nearby sensors and detailed station information. The app supports data from PurpleAir and AirGradient sensors as well as official AirNow stations, and it can show AQI, temperature, humidity, trends, favorites, and synced settings across Apple devices. Paku is published by Pitou Technologies, LLC and is also available for iPhone, iPad, and Apple Watch.
Key features
- View live AQI and wildfire smoke readings from nearby sensors
- See PurpleAir, AirGradient, and AirNow stations on an interactive map
- Check a current air quality reading from the Mac menu bar
- Review sensor details such as AQI, temperature, humidity, and trends
- Save favorite sensors and sync them across Apple devices with iCloud
- Use widgets, Shortcuts, and Siri-related integrations for faster access
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Safety overview
Status: Mostly safe
Paku is a legitimate air quality app for Apple devices. Access to location is a normal part of nearby air quality features, alerts, and menu bar readings based on your area. The app may also use iCloud to sync favorites and settings across devices if you enable that feature. If you no longer use Paku, removing it will stop its alerts, widgets, menu bar updates, and synced app settings on that Mac.
Recommendation: Keep Paku if you rely on live air quality readings, nearby sensor maps, or menu bar monitoring on your Mac. If you do not use air quality tracking or wildfire smoke alerts, you can remove it without affecting macOS beyond losing its app features and any local app data.
Common paths
/Applications/Paku.app
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