Used this app for 3 yrs

It more than supersedes all other period trackers with its accuracy and ample customizations. It has proven to be more and more accurate over time. I ended up getting the deluxe version because I ended up pregnant, but I had a miscarriage. The app allows you to pretty much input any bump in the road, every symptom. Its really perfect. Also, the fertile days are spot on for me. Great job

Mlcrae1 about Period Tracker Deluxe, v9.4.1