Cloning a fluff entertainment app doesn't really bother me, but I come from a games background, and the app store is rife with shady cloning of full games that follow a monetization model similar to yours.

I have a couple that have had two of their games completely cloned, and filled with cheap 'casual appeal' graphics (one of which made it to #7 on the app store). I find this a kind of dirty way to make money.

http://www.gamepro.com/article/news/221862/hey-thats-my-fish...