Checking on the App Store (http://itunes.apple.com/us/app/tap-fish-2/id443891725?mt=8), you can buy less than $99 worth of "FishBucks". Most in-app purchases are between $1 and $10. It's just a freemium as any other.

You can disable in-app purchases with Parental Controls, which should be used by, you know, parents, to, err, control.

Of course, being The Daily Show (or should I say "American TV"?), it's completely one-sided and exaggerated. That gets the message across, I guess.