Well I have the real Radion XR-15s and Mobius SUCKS and it is in English.I have a Kessil knockoff of that brand (they call themselves A+), the app/programming is horrible unless you understand Chinese.
On the pictures the app looks like it is English, but it works with a lot of popup messages and all these are Chinese.
The seller promised better English app-updates but never happened.
The light is in a drawer somewhere, can't use it because of the app.
Safe yourself a lot of trouble/money and go for the real deal.