The app
Clearcast shows you the weather where you are, and how clean the air is while you're there. The forecast comes from Open-Meteo; the air quality is pulled from real ground monitors near you — AirNow, OpenAQ, WAQI and PurpleAir — and reconciled when they disagree, rather than trusting a single coarse model.
Every reading is stamped with how old it is and fades from green to amber to red as it ages, so you always know whether you're looking at something live or something stale. Tap any metric for its own chart and a plain-language explanation of what it means and what's safe.
Widgets
Add a home-screen widget and Clearcast keeps the current conditions in front of you, refreshing itself in the background. Several sizes, on both iOS and Android.
Price
Clearcast is free. The whole app is there with nothing locked away — no ads, no subscriptions. If it earns a place on your home screen, there's an optional tip that buys me a coffee. That's the only thing you can ever pay for, and it unlocks nothing.
Support
Questions or bug reports: lkavenagh+clearcast@gmail.com