Flo Period & Ovulation Tracker

4.8
3.64M reviews
100M+
Downloads
Content rating
Rated for 3+
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About this app

Welcome to Flo, the world’s most popular period, pregnancy, ovulation, and cycle tracker app with seven million five-star ratings. Flo has become the go-to period tracker for over 350 million people seeking a reliable period, ovulation, and cycle calendar. We’re revolutionising women's health, empowering people with periods to understand and leverage their body's signals.

New to Flo: Flo for Partners! Link your account with your partner so they can see updates on your cycle or pregnancy. 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.

Why Flo?
Accurate Menstrual Tracker: Log your period start date in Flo’s calendar. 90% of members agree that Flo’s period predictions are accurate.*
- Ovulation and fertility window tracking: Identify high-chance pregnancy days with Flo’s calendar, facilitating conception planning.
- Flo helps 89% of women feel prepared and aware of their body's signals.**
- Go-to pregnancy app: Information from conception to birth to motherhood. 84% of members feel more educated about pregnancy with Flo's assistance.***

There's More to Tracking Your Period:
- Menstrual Cycle & Period Tracker: Our ovulation and period calendar provides valuable insights into all your period symptoms, such as discharge and mood swings. Developed with over 100 health experts, Flo’s Calendar provides a holistic reproductive and menstrual health approach.
- Ovulation & Fertility Window Tracker: Boost your chances of pregnancy through expert insights, tailored content, and precise fertility & ovulation windows.
- Women's Health Tracker: Effortlessly monitor your cycle, ovulation, symptoms, sex drive, potential fertility windows, and more.
- Pregnancy Tracker App: Vital insights for a healthy pregnancy and birth. Access valuable information and guidance on fertility, pregnancy, birth, and newborn care.

Maximising Your Use of Flo Menstrual, Period, & Ovulation Tracker & Calendar:
- Anonymous Mode: Protect your identity. Your name, email address, and technical identifiers will not be connected to your health data in your new Flo account.
- Reminders: Flo's menstrual and period tracker can be personalised with scheduled reminders around your period's start and end date, ovulation days, taking the contraceptive pill, potential fertility windows, and more.
- Secret Chats: Safely discuss intimate topics like fertility, birth control, discharge & irregular cycles. Have conversations with our global community.
- Content Library: Explore thousands of articles and videos on women's health, periods, ovulation, birth control, sex, fertility & pregnancy.
- Health Assistant: Chat with our virtual assistant about late periods, irregular cycles, fertility, PMS, ovulation, and more.
- Symptom Patterns: Menstrual cycle and symptoms tracking to identify patterns in your period and better understand your body's signals.
- Wear OS complications & tiles: Get insights about your cycle by setting up a tile and complication on your watch.

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

For any assistance regarding our period calendar and ovulation tracker, contact support@flo.health.

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

Flo is compatible with Wear OS 3.

Download Flo and join millions who trust Flo as their go-to app for period and menstrual cycle tracking, calendar management, fertility, and pregnancy support.

*Based on a survey of 2,000 members in 2021.
**Based on a survey of 1,900 Premium members in 2022.
***Based on a survey of 2,500 members in 2022.
Updated on
18 Jul 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

4.8
3.61M reviews
Sean Peacock
12 July 2024
The partner features are extremely lacking for the free version. I can't see a calendar, just things like "period due in X days" It seems to have good information, but as soon as you click the notification, it goes away, and you can never see it again or read any more info, just an ad to buy premium. Sadly, there aren't any other options that we can find to share info for partners.
12 people found this review helpful
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Audrey Carosiello
13 July 2024
It's a nice app to track info but the amount of things that you have to pay for (especially when I can just google the "reading material" FOR FREE) is stupid. You can't even customize your profile... Along with that when clicking on something that's paid for, it just takes you to a "pay for a subscription" page without asking if you want to continue. Thankfully I figured out you can just back out because there is no x option. At least I can track the actual info I need.
16 people found this review helpful
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Janessa Wright
14 July 2024
I love the idea and design of this app very much, but unless you're willing to pay for a subscription, it's only functional use is the Calendar and a couple of free articles. I am all for supporting women's apps like this, but gods, you can barely click on one thing without being locked out and having a subscription jammed down your throat. It seems to be very hungry for subscribers, which almost makes me not want to open it. This app is gorgeous and has the right ideas but it's 99% an ad.
15 people found this review helpful
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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!