- AirGradient’s worldwide network of open-source monitors now appears anywhere PurpleAir sensors do — the map, search, favorites, alerts, widgets, Live Activities, and Siri — with the same details and charts. - A new Data Sources screen in Settings allows you to manage which networks you want to use. - Charts in sensor details now support scrubbing through history by touching and dragging. - Nearby sensors are picked from within a 15 mile radius (up from 10), so widgets, Siri, alerts, and Live Activities show a reading more often. - The Live Activities settings screen has a Start Live Activity button, and the map menu disables Start Live Activity when no sensors are nearby instead of failing after you tap it. - The subtitle in sensor details now shows the data source icon. - Several small bug fixes and performance improvements.

- Your private sensors are now picked up by nearby alerts and live activities. - Private sensors show up in search results.

- Adds support for nicknaming sensors.

- Sharing a sensor now sends a link to the sensor with a live AQI reading instead of a screenshot. - Sharing from the favorites sheet sends a link to your nearby sensor instead of a screenshot. - Air quality alerts are now delivered as time-sensitive notifications, so alerts arrive even while a Focus is on. - Sensor and nearby alerts now always follow the app-wide correction setting; the per-alert correction option in alert settings has been removed. - If a subscription is still active alongside a lifetime unlock, the membership screen now lists it with a reminder to cancel so you aren’t charged again. - Returning to the app no longer briefly shows sensors as offline.

## New - Readings now blend into a heatmap layer when zoomed out, making it easier to understand air quality across a large area. - Live Activities are redesigned with a history chart, can start automatically when AQI crosses a threshold, and are now updated by the server — so they stay fresh while you're stationary or after the app is closed, and follow the nearest sensor as you move. - AirNow sites show PM2.5, PM10, and ozone readings, use a government building icon, and open a full detail sheet with per-pollutant readings and EPA guidance. - Alerts notify you again each time air quality reaches a more serious level, not just the first time it crosses your threshold. - The app checks for new PurpleAir sensors on every launch instead of once a week. - Sensors and places you search for are saved as recent searches. - Updated Mac layout, with sensor details open in a floating panel next to the sidebar. ## Improved - VoiceOver and Dynamic Type support have been greatly improved, and map markers now grow with your text size. - Voice Control users can open favorites, nearby sensors, and search results by speaking the sensor or place name. - The map re-centers on your location when you return after being away for a while. - Indoor sensors are marked with a gray ring instead of a house icon, similar to the PurpleAir website. - Sensors fade as their confidence drops — on the map and in charts — so you still see the reading and its color instead of flat gray. - Map pins abbreviate extreme AQI values, condense wide readings, and have improved contrast. - The sensor detail screen is redesigned, with actions in a new bottom toolbar, distance to the sensor, and an indicator when channels are downgraded. - The map no longer jumps around when opening sensor details. - Chart data binning is improved, so spikes remain visible instead of being smoothed out. - Trend arrows are more accurate, and react to changing values more quickly. - Tapping the Live Activity on Apple Watch opens the Paku watch app. - Widget configuration has been improved, and the sensor picker now suggests your favorites and nearby sensors. - Readings hovering around your threshold no longer ping-pong between bad-air and improvement alerts. - Nearby sensors are picked from within a 10 mile radius (down from 30 miles), so widgets, Siri, alerts, and the menu bar show more relevant readings. - Smart Select no longer falsely flags sensors as outliers or ping-pongs between sensors with similar readings. - Nearby alerts and the Live Activity share one location monitor, so running both costs half as much battery. - Improved sensor detail layout on Apple Watch, and the watch widget can now surface automatically in the Smart Stack. - On iPad, Settings presents as a narrower centered sheet, and selecting a sensor in portrait centers it above the sheet. - Readings update more frequently, and search, sensor details, and Live Activities no longer hitch while loading. - Private sensors now show hardware IDs, when each was last seen, and a status tag. - Settings are reorganized around new Map Display and AQI Settings pages. - Offer codes can be redeemed from within the app. ## Fixed - Fixed an issue where a sensor opened via a push notification or widget would fail to load. - Fixed the map going blank after changing settings, pins showing stale or cached readings, and sensors lingering from areas you had panned away from. - Fixed temperature gauges pointing at the wrong spot in widgets, and the temperature trend arrow being stuck for people using Celsius. - Fixed map search matching sensors differently than alerts, the watch app, and widgets. - Fixed the App Store review prompt asking too often. - Mac: the menu bar app starts from your last known location, refreshes reliably while loading, and quitting it now turns off the setting instead of coming back at the next login. - Countless small bug fixes and performance improvements.

→ 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.

→ An improved Smart Select algorithm should pick a more accurate "nearby" sensor in some cases. Please reach out if you see any regressions here!

→ Fixes an issue where widgets failed to load on watchOS.

Fixes a bug where the location button did not work on iPad, and sensors would not load until the map was manually panned.

→ Bug fixes and improvements. More coming soon I hope!

→ This update includes support for iOS and watchOS 26, with a beautiful new Liquid Glass design.

→ This update includes support for iOS and watchOS 26, with a beautiful new Liquid Glass design.

→ Fixes a bug where the temperature value returned in Shortcuts was always in Fahrenheit.

→ AQHI+ support in widgets.

→ Adds support for Canadian AQHI+

→ Use the pin-style annotations when zoomed in.

This update brings a brand new App Intent with support for getting real-time data for any data point supported by Paku from any sensor. This means you can access that data in Shortcuts, through Siri, with the Action Button, and more.

→ You may have already noticed, but you’ll now get notified when a sensor with an alert set up is offline for more than an hour. → While working on the above, push notifications were slightly broken for about a day (sorry about that!) - all is fixed now. → Includes a fix for a rare crash.

→ Fixes an issue where the wrong averaging period was used in some cases.

→ Small bug fixes.

→ Increase the zoom level at which sensors will blur. → Some small bug fixes.

→ Improved visualization of data when zoomed out. → This new visualization can be toggled off in settings using "Blur When Zoomed Out"

→ improved visualization of data when zoomed out.

→ Improved Live Activity layout on watchOS.

→ AirNow sites will no longer display data when it becomes stale. This should mitigate another issue where the data is not updated sometimes, which I’m still tracking down.