Natural Family Planning App–sort of

UPDATE A thorough study of more than 95 fertility awareness tracing apps sets the record straight on what these apps can and cannot do. In short, rely on your teacher and use the apps a tool to help.

Clue- Period & Ovulation Tracker (Free) iOS  Some reports bill this as a Natural Family Planning App. But it is very clear in the developer’s presentation that this is not to be used to prevent pregnancy. Still, it is a tool to help track your menstrual cycle to predict your next period or bout with PMS. Fertility days are highlighted for you. According to developers, Clue uses an algorithm to calculate and predict your own unique cycle. And, developers claim, “the more you use Clue, the more accurate it gets.” Check out their video which explains how this app works and the educational material it offers.


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Categories: Blog for Catholic Apptitude

Author:Jennifer Kane

Content Evangelist, Jennifer Kane, is a secular Carmelite (OCDS), wife, mother, grandmother who worked for more than 30 years in marketing/communications which included 20 years in radio broadcasting including news director. She holds degrees in Journalism/Communication (BA) and English (MA) from St. Bonaventure University. In 2016 she authored the Vatican application for minor basilica status for The Basilica of St. Mary of the Angels in Olean, New York. Pope Francis granted that title in 2017. Research on the basilica formed the basis of her history book, A Place Set Apart. She previously authored the book, A Worthy and Capable Clergyman, the second part of the history book in a slightly different format. She is founder and editor of the website,, the #1 English language website cataloging/reviewing Catholic apps for mobile devices.

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