Flo Health is a science-backed cycle, ovulation, pregnancy, and period tracker with over 570 million downloads worldwide.*
Track your period (regular or irregular), predict ovulation, learn to spot fertile signs, follow your baby’s growth with Flo Health’s pregnancy tracker, and explore common perimenopause symptoms. Flo Health is here to support your menstrual cycle and female health journey.
Is my data safe with Flo Health?
Flo Health is the first and only period tracking app with two certifications that are internationally recognised as the gold standard in data protection and security. In 2025, Flo Health was recognised as the ISO/Information Security Management System Team of the Year at the PICCASO Privacy and Security Awards for excellence and commitment to privacy-first design.
- Anonymous Mode: Use the Flo Health period tracker without any personal identifiers being linked to your health data.
Why choose Flo Health for period and ovulation tracking?
Flo Health is more than a basic calendar — it's a period tracker and ovulation tracker designed to help you notice patterns over time.
- Over 70 trackable symptoms and moods to receive personalised menstrual cycle insights
- Support for irregular periods, pre-period symptoms, and cycle changes
- Custom reminders so you never forget to log a period or birth control
- Edit your cycle and symptom logs anytime to keep your cycle history accurate
- Cycle report summaries you can download and share with your doctor
Can Flo Health support my trying-to-conceive (TTC) journey?
Flo Health offers educational features to help you explore conception insights and better understand how to spot fertile signs.
- Fertile window and ovulation predictions based on your logged period data
- Log LH/ovulation test strip results and basal body temperature
- Discharge tracking to help you recognise fertile signs
How does Flo Health support me in pregnancy?
Once you conceive, switch to Pregnancy Mode for checklists and expert guidance.
- Pregnancy tracking with weekly updates on your baby's development
- Daily articles explaining fetal development at each stage
Can Flo Health help me with perimenopause symptoms?
Track changes during perimenopause with tools designed to help you better understand this life stage.
- Perimenopause Score to follow symptom changes
- Menopause Timeline to understand the perimenopause phases
- Tracker to log sleep, energy, mood, and well-being changes
Can I share with my partner?
Flo for Partners lets you invite your partner to support your health journey.
- Help them understand your menstrual cycle, get ovulation predictions, and celebrate pregnancy progress together.
Is Flo Health free?
The Flo Health app is free to download and includes core tools you need to track and understand your cycle.
What do I get with Flo Health Premium?
- Daily, tailored insights and expert-led videos
- In-depth pregnancy features
- Fertility insights to support your TTC journey
- 24/7 virtual Health Assistant: Explore instant, tailored insights about your body and cycle trends
- Secret Chats: Find tips from other members
- Flori: Well-Being Battery that gives you a snapshot of how your sleep, cycle, activity, and symptoms may be impacting you
Note: Flo Health Premium is HSA/FSA eligible.
Medical disclaimer: Flo Health does not provide medical advice, diagnosis, or treatment, and is not a method of birth control or conception aid. Predictions and features are for informational and educational purposes only. Always consult a qualified healthcare professional.
Flo Health period tracker is compatible with Apple Watch.
Download the Flo Health app today and join millions using a trusted period tracker, pregnancy app, and cycle tracker.
*As of July 2026
Privacy Policy: https://flo.health/privacy-policy
Terms of Use: https://flo.health/terms-of-service
I have been using this app since 2015 and I has never fail me when it comes on to period predictions I’m now 24 going to 25 and this is my second pregnancy it’s tracking it like a charm giving me updates daily insight reminding me about my pills n that I should drink water and what to expect and ideas on how to relieve pain or coop with stress boiii it’s just everything. With doctors advice and reasons for whatever discomfort or strange feelings your having it’s free but you can pay for more intelligent and it’s not expensive I don’t regret paying!! Guys you should get this app!
Developer Response
Hello 112758capri, we truly appreciate your wonderful feedback! It’s heartening to hear how our app has been an essential part of your journey, providing you with helpful insights and reminders. Thank you for sharing your experience with others! Yours, Flo
Was good but now you have to pay
ttyelle
Flo used to be the BEST app. It had all the best analytics and really worked well for tracking my period. Ever since they started doing major updates you now have to pay to access some information. At first I was okay with it I didn’t pay but I just felt like whatever information I was missing out on I probably don’t need it. Now they’ve been practically FORCING me to pay for the app and it disgusts me. Why do I have to pay to see more than 2 months of period predictions?? That never used to be a thing. What about women and girls who can’t afford it?? It’s one thing to hold of on IMPORTANT information about the female body under the guise that you have to pay for it but they shouldn’t have messed with the period predictions section. Now it’s clear they’re only doing this for money and this is the same thing that contributed to period poverty in the world. Today I am uninstalling this app because it’s clear they care more about money than women.
Developer Response
Hi ttyelle,We understand how important this feature is for you and we’re sorry that you can’t use it to the full extent. At Flo, we strive to achieve perfection in cycle predictions and make them personalised for every user. In order to do so, we use complex AI models and work with top-notch engineers. The development and constant improvement of prediction algorithms require certain costs. This investment allows us to create a product that helps you on your journey to becoming healthier and happier every day.While predictions are paywalled, we promise to keep basic features available to everyone. Cycle predictions for the two future cycles remain a part of the free version and we hope that this information will help you in planning your future events.Best Regards,Flo Support Team
Improvements
Janelle18@
Love the app! I think it should be more personalized as in it should specific quotes each month that expresses how women feel and how we view our periods; when it’s coming, in the middle of it or when it ends. It’s a really good app but I think if it’s more personalized then it would be a great app!
Developer Response
Hi Janelle18@,Thank you so mush for your feedback! Could you please contact us at support@flo.health and let us know what you would like to change? Our team will be happy to assist you!Kind Regards,Flo Support Team
Only 4 positive moods and 11 negative moods????
skjaisbsb
I’ve been asking this app to add more positive moods to log my daily emotions and I noticed an app upgrade today and still no change? This is upsetting because why is FLO that is “supposed” to be for women’s well-being assuming every women experiences far more negative emotions than we do positive ones??? Are the only positive feelings women have seriously only calm, happy, energetic and frisky???? ARE YOU SERIOUS? What about curious? What about excited? Playful? Sexy? Reflective? Eager? Spontaneous? Giggly? I know some of these are repetitive but you’ve DEFINITELY repeated multiple feelings for the negative emotions, such as apathetic and low energy? Such as obsessive thoughts and confused? Such as very self critical and feeling guilty? YOU NEED TO DO BETTER. STOP ASSUMING WOMEN FEEL WORSE MORE FREQUENTLY THAN WE DO BETTER!!!! It’s so insulting.
Developer Response
Hi skjaisbsb! We’re very sorry for your experience. Could you please contact us at support@flo.health and let us know what you would like to change? Our team will be happy to assist you! Kind Regards, Flo Team
Dear Flo Community,
This is a technical update that helps us improve our app and make performance even better.
Thank you for updating!
Always yours,
The Flo Team
P.S.: If you like our app, please don’t hesitate to rate and review us
Version 10.9.1
Subscriptions
Flo: Cycle Tracker
Connect your life & your period with Premium
Free Trial
Flo Pregnancy Tracker
Flo Pregnancy Tracker
Free Trial
Flo Birth Control Reminder
Set reminders for your birth control method
Free Trial
Flo Women's Health & Wellbeing
Trusted Information backed by health experts
USD 10.99
Ovulation Tracker
Understand your fertile days
USD 9.99
The developer, FLO HEALTH UK LIMITED, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Purchases
Location
Identifiers
Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Purchases
Location
Contact Info
User Content
Search History
Identifiers
Usage Data
Sensitive Info
Diagnostics
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
