yr.no tends to be most accurate for Scandi+Baltics somehow pretty often.

Ventusky has the best app experience in Android with many different layers like wind, precipitation, air quality and many more. Can only recommend this as well.

WarnWetter for Germany. Costs a symbolic 1 Euro for dumb reasons, but I think it's easily worth it.

I actually use (and pay a subscription for) Windy, which is local (EU) and has data from a multitude of providers (some of which aren't free).

My comment was a critique of a launching approach that I find annoying, because I would never dare to launch an app ignoring most of the world.

In Switzerland all weather data is now also open and accessible via API. You can also use it for commercial purposes.

https://www.meteoswiss.admin.ch/services-and-publications/se...

Yes! They are much better. Yr has a great API as well.