I'd never heard of them, but judging by their website it looks like they produce apps for iOS, for Android and also have a webapp. Should they be required to re

I'd never heard of them, but judging by their website it looks like they produce apps for iOS, for Android and also have a webapp. Should they be required to remove an optional donation link from their website even though it might not have anything to do with Android at all? How does this involve Google exactly?