Ovulation Calendar Ladytimer 2.1.2

the author of this app says:

Ladytimer Ovulation Calendar tracks and predicts menstrual cycle days. Distinct features: easy to use, portable to any smartphone, alarm function, password protection, great community. Our quick setup screen prompts you to enter your last period and cycle length. If not available, you can enter the start days of 2 periods and Ladytimer will calculate the cycle for you. More features: BBT tracking, online data backup, password, alarm function