I know the app, I use it a lot, of course I'm a reader and not a creator. They mostly have Manhuas, meaning Chinese Comics, that have a similar format to Webtoons.
The user can read chapters, and keep scrolling down. When a chapter is paid, you can either get the coins you need by paying, or by watching an add, which is what I usually do.
My main problem with the app, is that sometimes they don't pay attention to type when they translate the webcomics, I've seen fan translations that were better than the original content they offer (talking about the same manhua).