My kids played with the app with me since it's mainly geared towards children. Well, and towards people who have a fondness for cats that I personally don't possess. They thought the world of it. They giggled over the meows that raise their pitch when you press a higher number on the keypad. I thought it sounded like the kitten was in pain from having its tail pulled. The equal sign also purrs at you. I agreed with them on how cute that was.
They loved the idea of tickling the kitten every time they put in numbers. I wasn't so sure about it blinking at me. It made me feel like I was cuddling an unwilling captive who was waiting for me to sympathetically let it go. It was also easy to imagine that the cat was waiting for me to let my guard down before sinking its sharp, little claws into my hand.
All in all, it really wasn't a bad app, it just didn't personally speak to me. My kids, on the other hand, loved it.