FTDNATiP™ is a program that predicts the time to the most recent common ancestor for two men based on their Y-chromosome STR matching and STR mutation rates. FTDNATiP™ uses specific mutation rates that have been proven to differ across STR markers. This improves the power and precision of estimates of Time to the Most Recent Common Ancestor (TMRCA). The result is a powerful tool for genealogists.