All this "app" does is ask you if you have parental permission, asks you to add two numbers, and then send you to the App Store to buy the $3 version.
This isn't an app, it's a trick, it's utter GARBAGE, and NEVER should have been approved for the App Store. I not only would have given this zero stars, I will be contacting Apple to have this removed from the store.
Shame on Apple, and shame on the people who made this rubbish. If they are even capable of shame.