Breathable

An air quality index widget for iOS, iPadOS, watchOS and macOS.

Version 2.1 (September 22, 2021):

Added support for more complications, including Modular and Utility!
Updated Watch app initial flow to better explain how to get help with initial setup
Added additional Watch app information to Help Center, including detailed steps for troubleshooting initial setup

Version 2.0 (September 21, 2021):

Breathable now supports Apple Watch!

A new Breathable Watch app is available
The Watch app shares configuration with the iPhone app, so your API keys, coordinates and API data preference will be automatically shared to Breathable on Apple Watch
Gauge complication support for all Watch face styles (corner, circular and bezel)
The Breathable Watch app will also show you the current value and related information if you tap the complication or launch the app directly
If you launch the Breathable Watch app without configuring the iPhone app first, the Watch app will give you information about how to proceed
Added some helpful Watch-related features to Help Center in the main app on iPhone if a Watch is connected

Widget improvements:

Breathable was previously reporting the AQI data’s date as the date fetched in larger widgets, which led to user confusion: “Why is my data from 6PM today when it’s 8PM?” But sometimes API data will deliver older data if the value hasn’t changed. Instead, Breathable now reports the actual time it fetched the data, even if the data was stale. This has two benefits: First, it means you’ll always know when the last actual fetch time was, and second, this resolves a bug in the widget where you could see “Today, 8PM” past midnight into the next day. Widgets should feel more accurate, more frequently
Both widget types now share their API data preference (done to better support Apple Watch version). Most users were likely already setting the same value for both widget types, but now the setting is shared between both

And:

Version 1.4 (July 26, 2021):

Three new emoji sets, two created by Breathable user Elizabeth! (Have a fun emoji set you'd like to share with other users? Email a screenshot to support@karbon.agency.)
Fix for an incorrect AQI range description in the Customize Emoji view
Curling of non-curled quotes throughout the app
Several accessibility improvements

Version 1.3 (July 25, 2021):

Help Center:

Collects a few common issues and solutions in one place—right in the app—including a rare issue where Breathable doesn’t immediately show up in the system widget list (and how to solve it!)
Added a force reload button for rare cases where a widget might not update after a UI change
Additional links to FAQs, emailing support, and our privacy policy

API Keys:

Required and recommended text will now only be highlighted if keys haven’t been entered/verified for those fields

Version 1.2 (July 20, 2021):

Completely overhauled the coordinates configuration view and functionality:

When valid coordinates are entered, Breathable will now also provide a location description (for example: "Cupertino, CA") which will help you visually verify your coordinates are correct
You can now search coordinates by typing in any part of a location—postal code, place name, or partial or full address
Completely removed the optional ZipCodeAPI service from the app, as its no longer needed

API Keys:

Improved tap targets in various areas of the Widget UI and Customize Emoji views
Improved how pop-up menus work in Widget UI form
Many future-looking improvements throughout the app for our friends living on the cutting edge of technology
Replaced straight quotes with curly quotes throughout the app

Version 1.1 (July 8, 2021):

Customize Emoji Scale! Choose from one of several pre-made, sometimes-goofy sets, or pick your own emoji for each value on the AQI scale
Added a slider to the Widget UI preview so you can change the sample index and see what your widget will look like at each value
Some visual cleanup in Widget UI settings to improve readability

Version 1.0 (June 29, 2021):

Initial release.