BillingsFriend & billingsMentor Apps
App users only pay the purchase price of the app.
No personal identifying information is contained in your fertility records.
Privacy Policy
May 1, 2026
Each app is self-contained on the smart phone and the app does not transmit any data over the internet during normal operation. billingsMentor app uses the internet to access help data.
The user can act to have the app transmit her fertility data to the billingsMentor server (https://www.billngsmentor.org) where it is stored and available for download, either by the author/app user or other app users to whom the author/user provides the necessary password access. There is no personal identifying information contained in this database.
Data exported to the server can be deleted by billingsFriend author/user by clicking on the “Delete Export” button on the app Export/Import screen.
Billings Method
Billings Method
Understanding the Billings Method
Charts – The Visual Record
The graphical record is a bar chart.
Charting and Rules
Observations, Charting and Rules
Variations of the Cycle
Normal Fertile Cycle
Achieving pregnancy
Achieving pregnancy by acts of intercourse
Breast Feeding
The billings Method during breastfeeding
JABFM – Online Survey
The Performance of Fertility Awareness-based Method Apps Marketed to Avoid Pregnancy; JABFM July–August 2016 Vol. 29 No. 4 pp. 508-511 (billingsMentor was reviewed under its previous name: ovulationMentor). Introduction: In recent years there has been an explosion in the development of medical apps, with more than 40,000 apps now available. Nearly 100 apps allow women to track their fertility and menstrual cycles and can be used to avoid or achieve pregnancy…
Read the full article here »
