Paku is the best app for checking PurpleAir. View sensors on a map, filter by indoor or outdoor sensors, and choose from AQAndU or EPA Wood Smoke normalization.

Paku also provides a widget that lets you keep an eye on the AQI near you.

What’s New

Version 1.2.1

- Fixes an issue where some sensors wouldn't load, especially if the map was panned right after opening the app
- The app no longer requires your location to use

Ratings and Reviews

5.0 out of 5
3 Ratings

3 Ratings

jltml ,

Really really great app! + a small suggestion

This app is just awesome! I’ve spent way too much time figuring out which air quality app to use, and this one is just so well-designed and straightforward (unlike other ones that attempt to standardize AQIs with their own systems etc)… seriously, it’s awesome. The *one* thing that would make it even better would be if it had the EPA correction in addition to the wood smoke & AQandU ones; it’d be super nice to be able to think in the same terms as AirNow when using the app. And additionally I have no idea how difficult integrating the API would be, but it would be incredible if EPA/AirNow sensors someday got added as an additional layer or something. Anyway! This app is awesome. It kind of made my day in a tiny way. Totally download it, and thanks so much to the person that made it :)

@Magnuson ,

Good start, hoping for more

Areas I’d like to see improvement:
- Ability to choose a sensor and stay with that sensor. I own a PA sensor and only want to see data from that sensor. I don’t want to see data from other sensors as I move locations.
- Get rid of the AQandU filter. I don’t like that filter nor trust the data it produces. If this app is going to force the use of a filter, it should be the EPA filter, not the AQandU filter.
- Provide time-based averages. Seeing the current AQI is only a small part of the picture. Gaining an understanding of how the AQI value is trending is immensely valuable and often times more valuable than the current reading.

Developer Response ,

Thank you so much for your feedback! I’ve been heads down on getting map support out, but you can also turn off the AQAndU conversion in 1.1.0. All the other asks are on the roadmap too. Enjoy!

Update: with 1.2.0 you can now choose a specific sensor for the widgets!


Best Purple Air Monitor App

I have found that while Purple Air does not have an official app, Paku is as close to what I'd expect of an app if Purple Air did make one. The integration of Apple Maps with Purple Air data, combine with the ability to click on a radial AQI and launch the Purple Air website within the Paku app, and real time widgets on the iPhone, make this a near perfect experience. I only wish that there would be more development into an Apple Watch complication, as well as data integration such as PM 1, 2.5, 10, temp and humidity all at a glance from within the Paku map view.

App Privacy

The developer, Kyle Bashour, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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