Perfect

I wish I had had the idea to develop this app and its algorithm. It is very interesting to combine temperature measuring with the historic of your past cycles, so together they combine for more precision fertile and non fertile days. The app sometimes is a little bit slow, but it is working and calculating with lots of care, without risking many green days in the beginning, as it still doesnt know my body and cycle with accuracy. I super recommend.

Simone Paz about Natural Cycles: Birth Control, v1.6.8