Hi There,
I can understand why the 10 day forecast is gone now. I know, the bread is not free even for you, but let me explain my point of view here.
Your logic here is wrong, because you are trying to cash one of the least reliable features in your app... your forecast works best within Czech Republic in the range of 1 to 3 days, not more.
I would not mind paying for your app, even though I know I am really cheap in this area. But for God's sake, not for the 10 days overview...
Yeah and not 600 CZK per year...
Czechs are cheap in general and 600 sounds huge.