This app allows you to design a configuration of bridge cards and then
to compute the probability of that configuration.

Suppose you have 6 spades and your left hand opponent has 4 spades, and you would like to know the probability of your partner having 3 spades; this app computes that probability!

You can define the minimum and maximum number of cards for each suit at each direction. You can indicate if a range of cards is known or unknown. Simply, mark the unknown cards by setting their checkbox to 'checked'.
The app computes the probability of the unknown cards.

Based on probability theory the app computes the probability of the ranges of the unknown cards given the ranges of the known cards.

This app does not need any permissions. It does not register any personal data. It is also free from advertisements.