Card Counting Trainer PRO

In this app, I proposed a simple and useful method that helps you to remember the status of all the cards.
Combine the interactive learning with flash card, it makes your learning more efficient.
With more and more practice, I believe it can greatly improve your skill of card gaming.
Please note this is a complete version with many customized features:
1. Able to mix cards not in the range ( In the session, "Suits Complex" ).
2. Able to set numbers in abitrary combination & order.
3. No Ad.
4. Better sound.

Rules;
1. Give each suit a weighting, here, spades (♠): 8, hearts (♥): 4, diamonds (♦):2 and clubs (♣):1 .
2. If we map each suit into each bit of a hexadecimal number, then a hexadecimal number will represent a specific combination of 4 suits.
3. As I proposed, the combination of spades (♠) & clubs (♣) could be encoded as (Binary)1001=(Hexadecimal)9.
4. If hearts (♥) come out and join into the combination, the it will be encoded as (Binary)1101=(Hexadecimal)D.
5. By this method, if we want to memorize the combination of the suits of the 5 numbers, A, K, Q, J & 10, then we just encode them as a 5-digital hexadecimal number.
6. For example, a 5-digital hexadecimal, C903F, represents the combination of the following cards:
A♠,A♥,K♠,K♣,J♦,J♣,10♠,10♥,10♦,10♣
7. By one’s capability, one can memorize all the condition of each card, as long as one can memorize only one 13-digital hexadecimal number.
8. This app helps one to complete the training of my proposal step by step.