Flo Ovulation & Period Tracker

In-app purchases
3.19M reviews
Content rating
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About this app

Welcome to Flo! The leading period, pregnancy and cycle tracker. Join over 300 million users who rely on Flo as their go-to pregnancy and ovulation tracker and calendar. With an impressive 6 million 5-star ratings, Flo is transforming women's health by empowering individuals to harness the power of their body signals.

Why choose Flo?
- Accurate Menstrual Tracker: Log your period start date in Flo’s calendar. 90% of users attest to Flo's precise period start predictions.*
- Ovulation and Fertility Window: Tracking for your most fertile days with Flo’s calendar, allowing you to plan the optimal time for conception.
- Supporting Women's Health: Flo helps 89% of users be prepared and aware of their body's signals.**
- Go-To Pregnancy App: Information from conception, to birth, to motherhood. 84% of users feel more educated about pregnancy with Flo's assistance.***

There's more to tracking your period:
- Menstrual and Period Tracker: Understand your symptoms better, such as discharge or mood swings, by tracking with Flo's comprehensive ovulation and period calendar. Developed in collaboration with over 100 health experts, it provides valuable insights.
- Ovulation and Fertility Window Tracker: Boost your chances of pregnancy with this pregnancy and ovulation calendar app, offering expert insights on fertility and continuous support throughout your journey.
- Women's Health Tracker: Stay prepared for your period by tracking your symptoms in the period calendar. A tracker for your cycle, ovulation, weight, water intake, physical activity, sex drive, and mood effortlessly.
- Pregnancy Tracker App: Gain vital insights for a healthy pregnancy and birth with Flo's pregnancy calendar app.

How to maximize your use of Flo menstrual, period, and ovulation tracker and calendar:
- Anonymous Mode: Safeguard your identity by transferring only essential data to a new account. Enjoy Flo while maintaining your privacy.
- Reminders: Personalize Flo's menstrual and period tracker with scheduled reminders for tracking your period's start and end date. Receive notifications about ovulation, pills, birth control, sleep, water intake, and more.
- Secret Chats: Safely discuss intimate topics like fertility, birth control, discharge, and irregular cycles. Engage in anonymous conversations with other users and receive support from the global community on women's health
- Content Library: Explore thousands of articles and videos on women's health, periods, ovulation, birth control, sex, fertility, and pregnancy.
- Health Assistant: Seek assistance from our virtual assistant for late periods, irregular cycles, PMS, and more.
- Symptom Patterns: Menstrual cycle and symptoms tracking to uncover unique patterns and better understand your body's signals.
- Wear OS complications & tiles: You can get insights about your cycle by setting up a tile and complication on your watch.

Please note: Flo's predictions should not be considered a form of birth control.

Contact support@flo.health for assistance with the free Flo period calendar and ovulation tracker.

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

Flo Period Tracker is compatible with Wear OS 3.

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

*Based on a survey of 2,000 users in 2021.
**Based on a survey of 1,900 Premium users in 2022.
***Based on a survey of 2,500 users in 2022.
Updated on
Sep 28, 2023

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

3.17M reviews
Whitney Alston
September 9, 2023
It gets the job done with tracking what I need. I think it's misleading to keep having certain features pop up, only for me to find out they're stuck behind a paywall. I completely understand that the app needs to make money to keep running, I'm just not interested in any of the premium features. Running an ad here & there throughout the app is something I wouldn't mind. Other than that, I enjoy using it everyday.
130 people found this review helpful
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Kimberly Pruszynski
September 27, 2023
I just wanted a cycle tracker. This app always has pop-ups, asking me if I want to chat about things such as discharge, etc. NO THANK YOU!! Disgusting topics and too many pop-ups and windows to close before being able to just see the calendar. It is also always asking me to subscribe to the premium version for a ridiculous price. I just got a new phone and SO HAPPY to try a new, more basic app for this purpose.
4 people found this review helpful
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Megan Lewis
September 21, 2023
It works for basic tracking, but the constant ads for upgrading to the paid version is annoying. It's every time I open the app. I get teased for special features that are only available on the paid version. I'm never going to pay for a period tracker and I wish there was a way to opt out of the upgrade ads.
14 people found this review helpful
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Flo Health Inc.
September 29, 2023
Hi there! We understand you’re upset that some features are now available only on Flo Premium. Funds from our Premium subscriptions allow us to keep building and improving the app, while keeping basic cycle tracking free for everyone. We welcome your thoughts — email us at support@flo.health 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!