Welcome to Flo! The world’s leading period, pregnancy, and cycle tracker. Join over 420 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. - 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. - New! Flo supports perimenopause: Know what might be perimenopause and how to tune in to your body’s changes. Get clarity on common perimenopause symptoms and what can help.
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. - 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. - Use your tax-free funds on a subscription: Flo Premium memberships can be purchased using FSA/HSA dollars.**
Please note: Flo is not a diagnostic tool and should not be used as a method of contraception or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.
Contact support@flo.health for assistance.
To access our accessibility statement, visit: https://flo.health/accessibility-statement-android?current-location=auto-detect
Notice of Access Permission: Flo may request permission for: - In-app notifications or reminders. - Uploading photos to specific forum discussions. - Uploading audio recordings to closed group chats. Content sharing is entirely optional. Flo does not automatically access your content. You can select what you want to share.
*Not available in the UK or EU/EEA. **As of October 12, 2024. Following the SIGIS Eligible Product List. US only. Some FSA/HSA plan providers have different eligibility rules. Contact your provider in advance.
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 used to be fantastic. I used it for tracking my first 3 pregnancies and always recommended it to people. But that is not the case any longer. The only thing it shows now is how far along you are. Literally everything else is behind the paywall. It used to show you how big your baby was, where they are developmentally, and give you tips on what to expect. Now, anything you click on prompts you to pay for a subscription. It's ridiculous and I will be deleting the app.
16 people found this review helpful
Flo Health Inc.
14 October 2025
Hi Laura! 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 — feel free to send us a message! Kind Regards, Flo Team
Kat Moore
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23 September 2025
Great app for adults. There's a lot of explicit material that goes beyond simply educational content, so I wouldn't feel comfortable with my daughters using the app until they were much older. Also, even if you use the same log in, changing phones will cause all your data to disappear!!!! I was devastated to say the least when my app showed I was logged in but all my menstrual history was gone on my new phone. Be warned!
19 people found this review helpful
Flo Health Inc.
24 September 2025
Hi there! We’re very sorry you can’t access your previous account! We really want to help you, but we need to know your identifier in the app to find the reason for the issue and provide a solution. Please contact us from the app (Menu — Help — Chat icon), and we’ll help you access your account. Kind regards, Flo Team
Dawn Nelson
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13 October 2025
worst tracker due to the pay blockers and ad. I only use it as an additional app to track my period. I use other apps that are better & give you free insights & health advice without multiple ads that make you have to pay in order to read or watch an informative video! On a good note my husband can also view & track my period via this app. For some reason the other apps are giving him issues in tracking my health & periods.
1 person found this review helpful
Flo Health Inc.
13 October 2025
Hi Dawn! 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 send us a message: Menu - Help - Chat icon. 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!