One of the most common questions FACTS receives from doctors, women, and couples interested in charting their fertility using a fertility awareness based method is “Which fertility app is the best?” A quick iTunes or Google play search for “fertility awareness” reveals nearly 100 apps women can use to chart their fertility. This makes the decision of which app to use that much more confusing.

Women and doctors alike are asking, which fertility app is the best?

Women and doctors alike are asking, which fertility app is the best?

When it comes to avoiding pregnancy, women and couples need to make sure their app is effective. Currently, the only reviews available are based on user feedback and may not reflect an app’s true scientific effectiveness.

That’s when the idea to review these fertility apps was born. FACTS researchers conducted a fertility apps study to be published in the Journal of the American Board of Family Medicine the second week in July.

A new fertility app study

FACTS conducted a study to systematically review fertility apps claiming effectiveness at avoiding pregnancy. By developing a rating system based on criteria used by Family Practice Management to rate medical apps, FACTS rated each app on a five-point scale for 10 clearly defined criteria. Each criteria were then weighted based on their level of importance for avoiding pregnancy.


Rating criteria for fertility apps

The final results of this study will be available here on July 7th, published in the Journal of the American Board of Family Medicine. Until then, please review the following lists for the apps that were reviewed in this study.

Apps in the FACTS Apps Review:

2Day Method

Charting App






Fertility & Ovulation

Fertility Calendar

Fertility Clock

Fertility Pinpoint


Groove Fertility Pro





Lady Cycle

Lady Timer


Menstrual Cycle Woman Log

Menstruation & Ovulation

My Fertility MD

Natural Cycles

NFP Charting

NFP Project Caruso

Ova Ova



Ovulation Mentor


Period and Ovulation Calendar

Period Log

Period Pace

Pink Pad Pro


Woman Calendar

Apps excluded from the FACTS Apps Review

(not reviewed based on exclusion criteria*, unless otherwise noted):

Ahaba Marriage Meter, Baby Planner for Ipad, Basal Body Temp, BodyTemp and Period Monitor, Clue, CyclePeriods and Fertility Cycles, CyclePlus Fertility Tracker, Day After, Dot (not released at time of study), Fertility App, Fertility Flower, Fertility Friend Mobile Ovulation, Fertility View, fertilla, Free menstrual calendar, Get Pregnant Now, i-femion, i-period period tracker, Ladi Cal for iPad (BBT), Learning NFP, LifeCycle – Women’s health, Lily, LoveCycles, Menstrual Calendar, Maybe Baby 2013, Menstrual Calendar for Ipad, Menstrual Calendar Selene, Menstrual fertility calendar, Month Pal, Monthly Cycles Period Tracker, My Cycles period and ovulation, My Days Period and Ovulation, My period tracker, Ovulation Calendar – Surebaby, Ovulation Calendar and Fertility, Ovulation Calendar: Free Ladytimer, Ovuline Ovia Fertility (unable to enter past data), Period Diary, Period planner, Period plus, Period tracker, Period tracker! Period tracker/lite, Style period calendar, What to Expect Fertility, Woman Calendar Lite – Menstrual, WomanLog Calendar

*apps were not included in study if they either had a disclaimer prohibiting use for avoiding pregnancy or did not claim to employ an evidence-based FABM

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