Mentalism Magic Game

Telepathy, induction, black magic, illusionism, psychic powers, obscure magician, clairvoyance, ancient magic, mentalism or just a trick ???
Find out how this application can guess all the numbers that you think. There are 6 cards and many numbers.
The mentalist able to figure out the number you thought and have it appear on your phone.
Share this magic app with your friends and challenge them to understand the trick.
If you find out exactly how this app works you can write it in the comments!
Have Fun