Find out how youre related to your DNA matches using the number of segments and total centiMorgans. This app. contains multiple predictors that work for Ancestry, 23andMe, FTDNA, and MyHeritage. Theres even a predictor for double cousins. These tools use the most advanced probability data from peer-reviewed data sources and methodologies that are published in science journals. DNA Science even has tools integrated at GEDmatch.