[Brajeshwar]

I doubt that you're a parent. No fault of yours. But here is what happens. Your kid will play the free version and then she will master the free part. You'll see that she enjoys it and you won't hesitate paying for the paid version or the in-app purchase upgrades.

Here is a video of my daughter playing the Racing Penguin - http://www.youtube.com/watch?v=qaF6dPiJ-NM

She went through the free version in a zippy and kept playing it over and over again. I took her iPad, disable Restriction and bought the paid version.