PeakDay Fertility Tracker

3.7
116 reviews
100K+
Downloads
Content rating
Everyone
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About this app

PeakDay Fertility Tracker
Period, cycle, ovulation calculator to learn & chart your cycle. It is an important step in understanding your health!

Quickly record your daily fertility signs or symptoms, like basal body temperature and cervical mucus. Record up to 60 custom fields, like nutrition or emotional symptoms.

PeakDay provides you with an easy way to chart your cycle and connect with a community to ask questions. You can also use PeakDay to share charts. Charts and data can be accessed from multiple devices, so both spouses can be involved in charting and grow in fertility awareness. We do not have ads or sell your information ever!

Looking for a reliable and simple fertility ovulation tracker app for women? Download PeakDay today to make that happen.
Updated on
Oct 1, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info, App activity and 2 others
This app may collect these data types
Personal info, Financial info and 5 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.7
116 reviews
Elisabeth Arendt
September 23, 2023
I used CycleProGo (the previous version of PeakDay) for years with no issues. I had high hopes for PeakDay. It looks nice and is intuitive to use. However, in the months since PeakDay came out, there have been regular outages (sometimes multiple times in one week). They do get resolved and my data is restored, usually within a day; but I want a reliable app that always opens every morning. Unfortunately, I will not be renewing my subscription.
15 people found this review helpful
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Fertility Science Institute
September 25, 2023
Dear Elisabeth, We appreciate your feedback and we apologize for the server and network issues. The issues you are experiencing are technically stemming from CycleProGo and that is why we are working diligently on a new release to move over to PeakDay 100%. Please contact peakday@peakday.com so we can assist you further during this transition.
Dr. Jennifer Eastman
September 6, 2023
This app replaced the CycleGoPro app. In the years I used CycleGoPro, I can't think of a time I had an issue entering my data. Since the switch, I have had repeated issues entering data to where I am considering returning to paper charting for the first time in about 5 years because my charts are so incomplete. I need to try to keep intermittent paper records to accommodate the app errors, which defeats the purpose! PLUS, PeakDay costs almost twice as much as the old app which actually worked!
9 people found this review helpful
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Fertility Science Institute
September 14, 2023
Dear Dr. Eastman, Thank you for your feedback. We apologize for the issues you've been experiencing and want you to know we are working diligently on a new release to help eliminate these problems. Please contact us at peakday@peakday.com so we can assist you with your personal concerns. Once addressed, please consider updating your 2-star review.
Sarah Jones
July 18, 2025
Have to hit refresh after EVERY SINGLE MOVE; click on a day, refresh, look at another month, refresh, save a symptom, refresh, try to add more info, refresh. Very annoying, though I will say I was trying to add past tracking info so there was a lot of clicking to be done... aside from that, the extra steps are pretty annoying compared to other tracking apps I've used. Why do I need to hit save after entering info, it should just be there like a toggle switch, few more thing, but not enough space
26 people found this review helpful
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App support

Phone number
+15134712000
About the developer
The Couple to Couple League International, Inc.
help@fertilityscienceinstitute.org
5440 Moeller Ave Ste 149 Cincinnati, OH 45212 United States
+1 513-471-2000

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