TrackHer will enable you to chart out the female cycle over a 12 month span for the people you choose. Simply enter the last period start date, cycle length, and cycle duration and TrackHer will calculate her cycle for the next year. TrackHer uses calculations to show you when she will have her period, when she's most fertile, and when she may be in the mood. TrackHer allows you to monitor multiple people and can be configured to send daily notifications to your phone letting you know what kind of mood she's in. You can add a photo and create a list of some of her favorite things so TrackHer can help you bring something nice to her when she's having a bad day. Although TrackHer utilizes sophisticated calculations, it is meant for entertainment purposes only.