Lady Cycle for Android is available in Google Play. Our full version is now completely free including additional special features such as advanced statistics and additional analysis methods! Get an overview about functionality and usage of our app.


How can Lady Cycle be completely free with no advertisement?

Lady Cycle is developed by a couple of two research scientists who work full time at the University of Zurich and ETH Zurich in Switzerland.

We have been developing Lady Cycle in our free time since 2011 motivated by the great contraception method developed by the NFP work group.

We are dedicating our app to all women/couples who are using natural contraception or conception with the symptothermal method.

We feel that everyone should be free to decide if and how much they would like to support us financially. If you are happy with our app, we are grateful for any donations! Just click on the Donate button above, or the "Support Us" button in the app.

If you have any questions or feedback, we like to hear from you at This email address is being protected from spambots. You need JavaScript enabled to view it. !

Patricia & Stephan
Lady Cycle Development Team