This app knows me so well! – Period Tracker Deluxe Review

I have used this app for many years (8+), and wouldn't be without it. Essential for planning activities around future periods, like swimming and what to pack. Great for when the doctor asks when was your last period: I always have an answer. I love it because it is very precise at calculating future periods, and it's easy to capture.
Review by Marthada2013 on Period Tracker Deluxe.