They certainly have. Now not only are their user accounts secure, they are on the bleeding edge of detecting and kicking off cheaters.
You can pay to get an extra move or a take-back (only joking).
Actually thinking about it, there probably is a cheap chess clonelike app on mobile market that does that.
They procedurally generated 1,500+ different iterations on top of the same Unity-based slots shovelware using noun/adjective pairs. The general success they enjoyed is as sad as it is hilarious. For the record, the most enticing descriptor categories were: "3D", "Luxury", "Casino/Gambling", and "Sexy".