My biggest complaint about Carrot is that they've let their Mac version languish for ages and the developer keeps saying he'll work on that next. It's not M1 native, it's a $14.99 up-front fee, and it doesn't support widgets from Big Sur and later. Apple adding Weather to macOS and iPadOS is more than good enough for me to cancel my Carrot subscription so I can have a consistent weather app to use across all platforms. Dark Sky was great but Weather has caught up in terms of functionality for the majority of use cases (and it uses the same data sources simply repackaged as WeatherKit). The only thing I'll miss about Carrot is the excellent watchOS app which includes radar.