Indie PC games that charge money for a mobile port. I have stardew valley, binding of Isaac, balatro, slay the spire, monster train, on my phone. (Several are included with Apple Arcade, though I would definitely not subscribe to Arcade if it weren't included with my other stuff. Also I personally wouldn't play stardew or Isaac without a controller.)
If it's "free" it's almost always obscenely abusive. (There are a handful of exceptions, including some open source ones, but I couldn't name any off the top of my head.)