The 'Chance-o-meter' is an aid to players in calculating the chance of winning with a particular combination.

There is a fee for using it - 10% of the winnings (starting from the Sapphire status it works for free). The “Chance-o-meter” does not work in Sit'n'Go tournaments.

You can enable or disable the 'Chance-o-meter' feature in the table menu:

Warning: the “Chance-o-meter” does not "spy" the cards and just shows the statistics of your hand and the cards at the table. You shouldn’t rely only on it because the information about the chance of winning  is not enough for the win. The player should make the final decision on his own.