There are two free apps today, and think I know why. The first one is seemingly innocent at first. By offering you the ability to play many solitaire games in a paid app with credits or coins. They give you a bunch to start with, but each game costs 1000 to play. Then you can wait to earn more the following day similar to many popular Facebook games or buy more with actual money, up to $100 in your real money.
While still free from its original $4.99 price tag, Solitaire Deluxe is no longer the "Free App of the Day". And the reviewers will tell you why.
It's my guess that to cover up the betrayal of this app and its developers ungratuitous ways, Amazon pulled it as the official "FAAD" and replaced it with a repeat of Amazon's own Airport Mania.
As with other dastardly apps, be cautious in downloading Solitaire Deluxe. Read the reviews.
Solitaire Deluxe -
Airport Mania: First Flight -