Crunch tab book exports now include a new hypothesis testing option that computes all possible comparisons between columns of a two-way table. When users select the “Column t-test” option in the “Export tab book… > Customize” panel, columns in output will be lettered and differences that are significant at the .05 significance level are indicated by letters underneath the cell with the higher percentage. See here for details.

An example of the exported result is shown below.

A way to perform the same tests in the web application is under development and is expected to be released later in the second quarter of 2019.