Paku - Air Quality & AQI Map
Screenshots
Description
See the air you’re actually breathing. Most apps give you one AQI number for your whole city. Paku shows you live readings from thousands of PurpleAir sensors, including the one down the street, so you know when it’s safe to open the windows, go for a run, or send the kids outside. → A map of real, live sensors Every public PurpleAir sensor on a fast, beautiful map, indoors and out, with AQI, temperature, humidity, and how they’re trending. Turn on AirNow to see official government stations too. Smart Select picks the most reliable sensor near you, not just the closest one. → Widgets for every screen Put the nearest sensor, a favorite spot, or your own sensor on your Home Screen, Lock Screen, Apple Watch, or Mac desktop. Glance, then get on with your day. → Alerts that beat the smoke Set a threshold on any sensor and Paku will notify you the moment it’s crossed, then again when the air clears. Nearby alerts can even follow you, watching the closest sensor as you move, entirely on your device. If you live with wildfire smoke or winter inversions, this feature is for you. → Live Activities Keep the AQI and its trend in the Dynamic Island or on your Lock Screen while smoke moves through. → Your own sensors Own a PurpleAir sensor? Add your private sensors and use them everywhere: on the map, in widgets, and with alerts. → Siri, Spotlight, and Shortcuts Ask Siri for the air quality nearby, check it from Spotlight, or use the AQI in automations, like turning on the air purifier when the number starts climbing. → On every device, in sync iPhone, iPad, Apple Watch, and Mac, with a live reading in your menu bar. Favorites and settings sync over iCloud. → Private by design Your location never leaves your device. No account, no tracking, no data collection. A few things reviewers have said: “Does one job, does it very well, and keeps getting better... I wish all software was like this.” “Seriously impressed by this app. It’s the perfect companion to my PurpleAir outdoor sensor.” “Ten stars.” Paku is made by one person, not a company. No growth team, no engagement tricks, just an app I use every day and keep making better. Alerts, Live Activities, private sensors, and a few of the fancier widgets are part of Paku Pro, a small subscription or one-time lifetime unlock that keeps everything running. The map, the standard widgets, and the rest are free.
What's New
→ Nearby air quality alerts: enable location-based alerts and Paku will monitor your surroundings, picking the closest sensor on-device and notifying you when it exceeds your threshold. Your location never leaves your device. → AirNow sensors now report all supported pollutants, and display the highest one. → Improvements to Smart Select for more accurate readings. → Various bug fixes and improvements.
Details
- Developer
- Pitou Technologies, LLC
- Main Category
- Weather
- Version
- 6.2.1
- Version Release
- 2026-07-18
- Initial Release
- 2020-10-02
- Size
- 96 MB
- Age Rating
- 4+
- Price
- Free
- Languages
- EN
- Bundle ID
- com.kylebashour.aqi-wtf
- Version Rating
- ★ 4.73 (9,925)
- First Seen
- 2026-06-21
Metadata updated 2026-07-19
Rank History
Free · Max 90 days · Top 5 categories shown (Y-axis: rank, lower is better)
Free Rankings
Paid Rankings
No rankings
Competitive Benchmark — Weather Top 10
What it takes to beat this app — comparison with the category's top apps. The orange row is the current app.
| # | App | Price | Rating | Ratings | Langs | Last Update |
|---|---|---|---|---|---|---|
| 1 | EPA AIRNow | Free | ★ 3.14 | 553 | 1 | 2026-06-22 |
| 2 | IQAir AirVisual | Air Quality | Free | ★ 4.81 | 42,853 | 20 | 2026-04-10 |
| 3 | The Weather Channel - Radar | Free | ★ 4.76 | 5,928,035 | 33 | 2026-07-08 |
| 4 | RainDrop - Rain Totals & Radar | Free | ★ 4.71 | 20,394 | 1 | 2026-07-15 |
| 5 | AccuWeather: Weather Forecast | Free | ★ 4.59 | 1,496,259 | 55 | 2026-07-09 |
| 6 | NOAA Weather Radar Live Map | Free | ★ 4.56 | 11,427 | 12 | 2026-07-13 |
| 7 | WeatherBug: Weather Forecast | Free | ★ 4.78 | 2,168,387 | 6 | 2026-07-18 |
| 8 | MyRadar Accurate Weather Radar | Free | ★ 4.85 | 1,074,921 | 9 | 2026-07-14 |
| 9 | My Lightning Tracker & Alerts | Free | ★ 4.76 | 63,956 | 12 | 2026-07-02 |
| 10 | Clime: NOAA Weather Radar Live | Free | ★ 4.47 | 1,046,375 | 18 | 2026-06-15 |
| 19 | Paku - Air Quality & AQI Map | Free | ★ 4.73 | 9,925 | 1 | 2026-07-18 |
User Reviews
While it’s great that they have a vast network in USA and parts of Europe their senses lack coverage in the Middle East, Africa and much of Asia. If they allowed for EPA and other reliable data sources, this app would be far more useful in those areas.
Clean, idiomatic iOS design. Performant, looks great, fair price. No complaints whatsoever.
Just found out that Paku sensors are in the settlements and all over the occupied territories. It’s shame companies have no morals anymore. When most of the world has refused this Israels blatant land grab that support aggressive settlers Paku finds it acceptable to sell and register their units in the site. Shame on them. I’ve blocked Peku and will throw the Paku sensor.
They keep asking for a review so here is 1 star.
The menu bar icons frequently fail to load and there is NO way I can find to contact support.
Used to work, but now it crashes upon opening (ipad). Tried the uninstall/reinstall - no luck.
I have allergies and this site is invaluable got finding out when it is safe for me to go outside and exercise.
After update to iOS 26 app crashes or shows wrong map location
Can’t even open the app. Immediately crashes. I don’t see a way of reporting bugs anywhere either.
I like being able to tell not only the air quality but also the temperature. We live quite a distance from where other apps tell the weather and Paku twos need mine.
Reviews are collected only for apps with detected changes (new entries or sharp risers).