This game is good for passing the time, but not for training. There are too many errors. For example, my cards totaled 20, the card tally says I busted and I lost the hand. Another time my cards totaled 12, the card tally says 17, and the recommendation says to stand. On yet another, I have 15 showing and the card tally says I have 20. In summary, you cant trust the game to simulate real life. I do have screen shots for all of the above examples.
grayinnc about 21 Pro: Blackjack, v1.2.2