Period Calendar is a free period tracker that also collects information on intercourse, mood, birth control, and weight. In addition to these, information is provided on the fertile window of its user.
It reminds its user when the time for a pill is close too. It is available on both Android and iPhone.
My Calendar, like Clue, is a customisable period tracker. It is especially helpful for those with irregular cycles.
My Calendar lets you track regular and irregular periods, and sends you discreet reminders of approaching periods and fertile days.
For those who do not like people snooping around, the app can be password-protected.
My Cycles tracks periods in a handy calendar and predicts future ones. With data collected, it provides information on your period, symptoms and fertile days.
With MyCycle, a user can know how probable are the chances of conceiving at a particular time as the app sends reminders during periods when the chances of conceiving are high.
All apps discussed here are free and available for both Android and iOs. The use of one app does not preclude the use of another. If it suits you, you can use more than one or try them all till you find the one that provides you with the help you want.