I’m afraid not.
Beta version with Czech support has release, you can review it from https://play.google.com/apps/testing/com.yeelight.cherry, thank you!
I cannot, because I have only iOS devices
I could not find language option in the app. Is it attached to system language only? Thx
Yes, the app language is with system.
This would be a feature request, because somebody prefer ENG before the original language
we will think about it.
I can help with Brazilian portuguese translation
Please PM me your email address. I will add translator account for you.