Girl's Period Calendar is a period calendar and prediction app designed for your needs.

Minimalist iOS 7 looks backed by the most customisable prediction engine available aim to help you in upcoming plans. The interface is clean and legible allowing quick access to information.

Features:
* A today screen is the place where you will find your daily periods info. As a bonus, you get Biorhythm readings every day. Look at this to decide if you want to act boldly or cautiously each day.

* The calendar screen is designed from scratch with the purpose to present the information you are interested in. Noted menstruations, fertility indicators and predicted periods for future cycles are shown in a simple and intuitive way. The calendar is continuous, so you can easily scroll to dates that you dates you care about. The calendar refreshes on the fly when you enter new periods, so you will have the latest information always.

* A settings screen is available if you may choose to customise the way prediction works:
- An automatic toggle switch to choose between automatic and manual prediction.
- For manual prediction, you enter intervals as long as you want.
- For automatic prediction, use the sliders to influence the prediction outcome. If your periods are very irregular, you may want to set older periods to account more to the average. For more even periods, you may choose the latest cycles to weigh more.
All this is available for both menstrual cycles or the actual menstruation. Having some settings for one and different ones for the other is perfectly valid.

Do not rely on this application for contraception. This app will trust your input and will use it for calculations, but there are more factors that influence your body. If you doubt your health condition, you should see a doctor.