Yep, and the Breezometer homepage now redirects to Google’s map platform page (subpages still seem to work, such as https://www.breezometer.com/air-quality-map/air-quality/unit...) and they had previously announced plans to sunset the Breezometer app in September.

Breezometer is also the air quality data source for Apple Maps and I’m sure other weather apps too, so assuming the pricing is comparable there’s probably a decent business here just from existing customers.