@mkjmkj Right now, I don't have any correct or 100% functional answer for you. Regarding to Chinese access, we are doing our best to offer our app in your country and we would like to make this clear. If Windy stops working in your country in upcoming months or years, it is not our fault and we will still try to do 100% to offer the app once again.
We offer our Premium on various platforms right now:
Paddle.com for our web app, subscription can be purchased on windy.com/subscription
Google Play, store for all purchases on Android devices
AppStore, store for Apple devices and our mobile app there
If you country blocks any of these services, or all of them, we are sorry about this, but we are not able to help more in this case.