Love this app! It follows the guidelines from "Taking Charge of your Fertility" exactly! Instead of paper charting or using the software I can chart changes to cervical fluid, position and temp wherever I am and it automatically draws the cover line (based on the rules of the book) and predicts when you will be ovulating or menstruating based on your past cycles! Love it! I was so excited and relieved after I read the book that I didnt have to paper chart! So user friendly!
Elleyoga about FemCal: The Fertility Calendar, v1.9.4