zRMicroArray – Gene expression analysis software. zRMicroArray software implements all of the functionalities, needed for preprocessing and statistically analyzing single-color cDNA and miRNA microarray data. The software is free for noncommercial use. On page 66 of the iframed .pdf file on the web page you can see a comparative evaluation of zRMicroArray vs GeneSifter and GeneSpring, performed by the staff at the Genomics and Bioinformatics Facility Core, Center for Environmental and Rural Health (CERH), Texas A&M University.