Flo Ovulation & Period Tracker

In-app purchases
4.6
3.9M reviews
100M+
Downloads
Content rating
PEGI 3
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About this app

Welcome to Flo! The world’s leading period, pregnancy, and cycle tracker. Join over 380 million members who use Flo as their go-to pregnancy & ovulation tracker & cycle calendar. With seven million five-star ratings, we're paving the way to better female healthcare by empowering people with periods to harness their body's signals.

Flo for Partners
Link your Flo account with your partner so they can see updates on your cycle and pregnancy. Period and fertile days predictions, we'll provide them with insights and actions they can take to support you better. Use Flo for Partners to maximize your connection when tracking your period, ovulation, or pregnancy.

There's more to tracking your period:
- Menstrual and Period Tracker: Understand symptoms like vaginal discharge and mood swings by tracking your period with Flo's ovulation and period calendar, developed in collaboration with over 100 health experts to provide valuable health insights.
- Ovulation & Fertility Window Tracker: Understand your fertile cycle and benefit from expert insights, tailored content, and information about conception and fertility.
- Women's Health Tracker: This is a calendar for your cycle, ovulation, weight, water intake, physical activity, and mood. Track your symptoms to prepare for your period.
- Pregnancy Tracker App: Receive expert information for a healthy pregnancy and birth with Flo's pregnancy calendar.

How to maximize your use of Flo’s menstrual, period, and ovulation tracker and calendar:
- Anonymous Mode: Enjoy Flo while maintaining your privacy and protecting your identity. Your name, email address, and technical identifiers will not be connected to your health data in your new Flo account.
- Reminders: Personalize Flo's menstrual and period tracker with scheduled reminders to track your cycle's start and end date. Receive notifications about ovulation, birth control pills, sleep, water intake, and more.
- Secret Chats: Safely discuss intimate topics from fertility to birth control in our supportive global community.
- Content Library: Explore thousands of articles and videos on women's health, periods, ovulation, birth control, fertility, and pregnancy.
- Health Assistant: Chat with our virtual assistant about late periods, irregular cycles, PMS, etc.
- Symptom Patterns: Menstrual cycle and symptoms tracking to identify patterns in your cycle and better understand your body's signals.
- Check if symptoms match those common of PCOS, endometriosis, or perimenopause with our Symptom Checker tool.*
- Wear OS complications & tiles: Set up a tile and complication on your watch for insights about your cycle. Flo period tracker is compatible with Wear OS 3.

Please note: Flo is not a diagnostic tool, and Flo's predictions should not be used as contraception or to facilitate conception. The Flo App is not a substitute for professional medical advice, diagnosis, or treatment.

Contact [email protected] for assistance with our free period calendar and ovulation tracker.

To access our accessibility statement, visit: https://flo.health/accessibility-statement-android?current-location=auto-detect

Download Flo today and join the millions of women who trust Flo as their free period and menstrual cycle tracker, calendar, and pregnancy app.

*Not available in the UK or EU/EEA.
Updated on
Nov 6, 2024

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.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info and 7 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.6
3.86M reviews
Kassidy Gunderson
October 18, 2024
I used to love this app. I've used it for YEARS. And in the last couple years, it's become impossible to use any of the features (except the basic tracker) unless you pay $40 PER YEAR. The app is completely flooded with great-looking features, articles, and insights, but you can't see anything unless you decide to subscribe. Does ANYONE pay $40/year for an app? Sounds really high to me. But I don't want to get another app because all of my data from the last few years is here. Disappointed.
63 people found this review helpful
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Flo Health Inc.
November 1, 2024
Hi there! Thank you for sharing this. We’re sorry to hear you’re disappointed that we moved some features out of the free plan. Premium subscriptions fund the ongoing development of the app, while keeping the basics free for everyone. We welcome your feedback. Please email us at [email protected]. Kind Regards, Flo Team
Shirley Luna
November 2, 2024
Been using this app for years and very useful to track my monthly cycle. It's fairly accurate. Some not when I come early or late. Just recently, I was checking our Flo for an update to find out my next period, but..my history track- it's gone! I tried to sign out/ log in- but seem like all been restarted new. I realized this app does not have sync setting to back up the history track. I miss the old version. Simple, detailed & bigger to read. Now- too many ads & expensive to pay to subscribe.
2 people found this review helpful
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Flo Health Inc.
November 2, 2024
Hi Shirley! We truly appreciate your feedback. To understand your request better and help you, please contact us from the app (Menu - Help - Contact us) or at [email protected] and share the details of your case. We’ll do our best to assist you. Kind regards, Flo Team
Elliot Craig
October 13, 2024
Great app, bought premium while it was on sale and I love the partners feature as well as all the resources available to you. However I can't rate it 5 stars because recently, I've come across a bug where I cannot view my predicted symptoms, it just displays a try again button over and over again no matter how many times I click it. Aside from this I've had no issues but fix this bug please!! Edit: Issue was fixed in next update, everything is functional, thank you flo!!
114 people found this review helpful
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Flo Health Inc.
October 8, 2024
Hi Emma! Thank you for your review! The issue has been fixed in the latest version of the app. Please update Flo and let us know if the feature works properly. We’re sorry for this experience and hope you’ll continue enjoying Flo! Kind regards, Flo Team

What's new


Dear Flo community,
This is a technical update which helps us improve our app and make its performance even better.
Thank you for updating!

Always yours,
Flo team

P.S.: If you like our app please don’t hesitate to rate and review us!