Period Tracker for iOS and Android Devices

The CycleBeads® smartphone app enables you to use the Standard Days Method® of family planning through your iPhone, iPod Touch, iPad or Android device. It is the only smartphone app based on this highly effective, well researched family planning method. It's more than just a period-tracking app, CycleBeads helps you prevent or plan pregnancy easily and effectively with your mobile device!

CycleBeads® Apps are available
worldwide in the iTunes and Google Play Stores.

To use the CycleBeads app, simply enter the start date of your most recent period. The app immediately shows you, based on the Standard Days Method, what day of your cycle you are on and whether it is a day when you could become pregnant or a day when pregnancy is unlikely.  You can use this information to prevent pregnancy, plan pregnancy, or just track your cycle.  You can see the information on a virtual set of CycleBeads or on a calendar format.

How to Use the CycleBeads® Smartphone App to Prevent or Plan Pregnancy

To use the CycleBeads smartphone app, enter the start date of your most recent period into the app. At the tap of a button, this period-tracking tool shows you where you are in your cycle and whether you are on day when pregnancy is likely or not. The information is displayed by a virtual representation of CycleBeads® and on a calendar view. You can use this information to avoid pregnancy or to plan pregnancy.


The CycleBeads app sends you alerts letting you know when you are on a fertile day or non-fertile day and when you are about to get your next period. You will also receive a period reminder to enter your next period-start date, if you forget, and a warning notice if you have a cycle that is outside the range for using this scientifically based family planning method.

Who Can Use CycleBeads® Smartphone Apps for Family Planning?

 When used for pregnancy prevention, the method is most effective for people with menstrual cycles between 26 and 32 days long.  You can have one cycle in a year outside this range and still use the method.  The CycleBeads cycle-tracking function will help you determine if your cycles are in the range and whether they stay in this range.  If you have cycles outside this range, you should use a different method for pregnancy prevention.