To begin the trick, you click on “Launch Trick” button. You select the value and the suit of the card you want to reveal during the trick. Grab yourself a deck of playing cards and pull out the cards the app requests you. Then you shuffle these cards and place them face down on the table. Remember the bottom card (ten of clubs) and place these cards face down on the other pile. Then you press the button and place your smartphone on the table showing the message “I predict…”. First of all, you show to the audience it is a normal deck by spreading the cards face up then you split them into two piles: you press your right thumb over the card you memorized to split at this position. Then ask the spectator to choose one of the two piles and remember which pile the spectator selected (the requested cards by the app or the remaining cards). You ask the spectator to shuffle his pile while you do the same with yours. Then both participants place the piles face down on the table and split them into two new piles. They turn face up the cards they cut and switch the two face up piles with each other. Each particpiant shuffles his face up cards into his face down cards. Finally, if the spectator chose the pile with the requested cards, you flip your pile and shuffle both piles together. If the spectator choose the pile with the other cards, you flip his pile and shuffle both piles into each other. Now the spectator can slide the screen and discover the first prediction: the number of face down cards. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Then he slides again to see the second prediction: the number of red or black cards. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 He slides one more time to see the third one: all remaining cards are from the same suit. Spectator finds there is an error in the prediction… Magician slides a last time to reveal a final prediction: the name of the only one different-suited card! To exit from the magic trick, you do a long press on the screen.