Double Down Stud app for iPhone and iPad

Double Down Stud is a Double Down Stud poker game. You play against a robotic house dealer in this game. The game is played with a standard 52 card deck and proceeds as follow.
1) You place a bet amount.
2) You will then be dealt with five cards with the first four card face up and the fifth card face down.
3) You have to choose either to stay put or to double the bet.
4) The fifth face-down card is then flipped up. You now have 5 cards for a poker hand and will be paid off according to the following pay table.
Royal Flush : 1000 to 1
Straight Flush : 100 to 1
Four of a Kind : 25 to 1
Full House : 10 to 1
Flush :8 to 1
Straight : 5 to 1
Three of a Kind : 3 to 1
Two Pair : 2 to 1
Pair of J to A : 1 to 1
Pair of 6 to 10 : Push
Other lower rank : Lose.