AppBrain's verdict
- Rating on App Store
- 3.07
- 27 ratings
- Last updated
- September 29, 2026
- Size
- 42.0 MB
It doesn't have enough ratings yet to judge what users think.
User feedback
Ratings and reviews on the App StoreComments on PeakDay Fertility Tracker App for iOS
We don't have enough comments to show example comments. Please check back later.
Store listing
By Couple to Couple League, from the App StoreDescription by Couple to Couple League Written by the developer, not by AppBrain. Click to read.
Couple to Couple League uses this app in CCL and LLP classes to learn the Sympto-Thermal method of NFP.
PeakDay is your partner for a happier, healthier, smarter fertility.
PeakDay can be used for free for women looking to simply track their period and chart their ovulation cycle. The PeakDay premium version allows women to chart their fertility cycles and log health information to help determine their fertility phase and situation.
PeakDay provides you with an easy way to chart your cycle and connect with a community of fertility coaches to ask questions. You can also use PeakDay to share charts with a teacher or doctor. Charts and data can be accessed from multiple devices, so both husband and wife can be involved in charting and grow in fertility awareness.
For more than 50 years, thousands of couples have learned NFP with CCL and trusted our algorithms to help them track and interpret their cycles to determine peak fertility. Now, we are using that same highly effective formula and algorithm behind PeakDay. It’s trusted and has a proven success rate for over 10,000 users (previous version known as CycleProGo app.)
10 Ways PeakDay can work for you:
1. Track your cycles. Easy to chart your menstrual cycle and ovulation by simply inputting your symptoms and signs each day.
2. Manage your fertility goals. You can naturally plan your family by using the fertility phase information to achieve pregnancy.
3. Predict the PeakDay of your fertility so that you can make sound fertility decisions.
4. Connect with our fertility community. Participating in the message boards and forums on PeakDay puts you in touch with fertility coaches for guidance and greater knowledge.
5. Share your charts and cycle history with real fertility coaches on the app or even connect your account to a fertility teacher.
6. Easy to use to practice NFP. PeakDay is fully compatible with CCL’s Sympto-Thermal method of Natural Family Planning and is used in both CCL and Liga de Pareja classes.
7. Custom tracking of over 60 fertility symptoms and signs. You can choose what you want to track daily by personalizing the settings.
8. Compare your personal cycle history. To better understand your body and fertility, you can keep cycle history which can help discover patterns in your cycles. The comparing tool allows you to look at 6 months of cycles and see your personal cycle statistics.
9. Learn about women’s health and grow in fertility awareness. Our online learning center is connected to PeakDay with videos explaining the basics about fertility, cycles and how biomarkers like mucus and temperature are important to fertility tracking.
10. Your data is in your hands. PeakDay is password protected and allows you to keep the account private or share your account with a spouse, a fertility expert or even with your doctor.
Looking for a reliable and simple fertility ovulation tracker or health app for women? Download PeakDay today to make that happen. Visit Peakday.com for more information about pricing, subscription options and learning materials.
To learn CCL’s STM NFP method, please visit www.ccli.org. If you are looking for a NFP class in Spanish, visit www.ligadepareja.org For fertility coaching and other programs, visit www.fertilityscienceinstitute.org
If you are having technical issues or have any questions, we are here to support you. support@peakday.com
For full Privacy Policy and our Terms of Service: https://peakday.com/terms/
Disclaimer: This tool should not be used for medical purposes or as a substitute for medical advice. Actual performance and results are not guaranteed. Use at your own risk.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 42.0 MB
- Content rating
- Medium
Technologies used by PeakDay Fertility Tracker App
Releases
Updates seen on the App Store- Version
- 3.0.19
- Launched
- March 2023
No changelog data
Alternatives
Similar apps and more from Couple to Couple LeagueAlternatives to PeakDay Fertility Tracker App
Also available on Google Play
Rankings
App Store top chartsApp Store Rankings for PeakDay Fertility Tracker App
About the app and developer
About PeakDay Fertility Tracker App
PeakDay Fertility Tracker App is a health & fitness app developed by Couple to Couple League.
User Ratings
PeakDay Fertility Tracker App is rated 3.07 out of 5 stars. The rating is based on 27 ratings.
App Information
PeakDay Fertility Tracker App is freely available from the App Store. The app size is 42.00 MB. The latest version available is 3.0.19. The last update was on September 29, 2026.
Technical Requirements
The app has a content rating of Medium Maturity. The app has been available on the App Store since March 2023.
PeakDay Fertility Tracker App is made and published by Couple to Couple League. AppBrain is an independent app data site and isn't affiliated with Couple to Couple League. The app name, icon, screenshots and description belong to Couple to Couple League and are shown as published on the App Store.
Developer information for Couple to Couple League
Address:
Share PeakDay Fertility Tracker App
Subscribe now to get full and unlimited access to AppBrain Intelligence. You'll have access to:
- App Intelligence dashboard (performance timeline, competitor comparison, country rankings, insight cards)
- Detailed ranking data per app
- Full timeline per developer
- Device market shares data per country
- Unlimited keyword tracking
AppBrain is an app data site, we track rankings, ratings, installs for all apps and games on Google Play and the App Store. AppBrain doesn't host app files or APKs, all install links go directly to the official store. All trademarks are owned by their respective owners.
More apps
App statistics
About AppBrain