Big 4chan apps like Clover got banned off the play store long ago. The reason given was nsfw content, but in the app you had to manually add nsfw boards, much like Reddit's nsfw communities. Picking and choosing which social media platforms to ban has already been a thing.
I used to use chanu years ago, and I vaguely remember it installing with no imageboards registered to it. You had to go into the settings and tell it which imageboards you wanted it to access.
