PairwiseTests 1.5 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. PairwiseTests for Mac belongs to Education Tools. This free software for Mac OS X was originally designed by Marley Watkins.
From the developer:
Pairwise Tests is a standalone Mac application designed to help you calculate three Pairwise Tests to control experiment-wise error rates: simple Bonferroni adjustment, Holm's sequential Bonferroni method, and Benjamin and Hochberg's False Discovery Rate.
You may want to check out more Mac applications, such as FRS Money Math, FRS Clocks and Time or ExamView Pro, which might be related to PairwiseTests.