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 would be very hapoy if there was some kind of „journal” to write down symptoms and things that are untypical/alarming, which are not included in daily choices. Also it would be helpful to write specifics on some things. (Kinda like in Medisafe)Except for some problems with notifications a while ago, it is really great. It has many options, it is SO useful to keep track not only of your period, but also symptoms and see patterns or changes. I also love to see articles, I actually learned a few things from them. I like these new about fertility and lack of, it very good to raise awarness.You’re doing a great job, thanks a lot! :)
Developer Response
Hi Arbalesterify!Thank you for your idea! Unfortunately, there is no such option at the moment, but we are constantly working on improving our app. Our team will definitely review your suggestion to determine if it's possible to implement and how to make Flo more useful to our users.Best Regards,Flo Support Team
almost primitive approach to reproductive biology
Aga-user
The app takes an extremely simplistic, almost primitive approach to reproductive biology. Right after ovulation, it starts displaying messages like “If you’re pregnant: Day 2,” which makes very little biological sense. At that point, even if fertilization has occurred, implantation has not happened yet, and there is obviously no way to know whether pregnancy will actually develop.What makes this even stranger is that this is neither the standard medical way of dating a pregnancy, which starts from the first day of the last menstrual period, nor an accurate representation of what is biologically happening after ovulation. It seems to be an arbitrary timeline designed to make users feel as though they might already be “pregnant.”For anyone with even a basic understanding of reproductive physiology, these daily messages are not particularly useful or informative. I would much rather see accurate information based on DPO and the actual processes that may be occurring at each stage — fertilization, cell division, transport through the fallopian tube, implantation, etc. — with appropriate uncertainty clearly communicated.For an app focused entirely on menstrual cycles, fertility and pregnancy, I would expect a much more scientifically precise and nuanced approach to female reproductive biology.
Developer Response
Hi there! Thank you for your feedback. Please contact us directly from the app or by writing to us: Menu - Help - Contact us and send screenshots you referred to in your review. This will help us improve Flo in the future! Best regards, Flo Team
I like it but...
dimlondiel
I really enjoy using flo and its a good application but it could be better if you could include breastfeeding into it - i am breastfeeding and would be great if the applicationWould take that into consideration. My period is quite regulated but there are some symptoms i would add connected to breastfeeding. Also if myPeriod is late - 3-4 days which is ok While breastfeeding im immediately getting some chat about possible reasons for that and breastfeeding isnt even listed there ....
Developer Response
Hi dimlondiel,We greatly appreciate your feedback to make the symptoms tracker more detailed and accurate. Our team will definitely review your suggestion to determine if it's possible to implement.Best Regards,Flo Support Team
Love it
UnaffectedDust567
I've been using Flo for quite a while now and I'm really happy with it, it got quite accurate in predicting my period. I love the additional content around periods, health and other related things 🍑🍆 I must say it's really helped me learn and be aware of what's going on in my body. I'm just missing 2 things: place to share feedback within the app and a symptom of ovulatory pain with option to select left or right. I hope the devs see this review!
Developer Response
Hello UnaffectedDust567, It's wonderful to hear how much you appreciate the app and its features! We truly value your feedback about the feedback-sharing option and the symptom selection, as it’s important for our team to know what our users need. Thank you for sharing your thoughts, and we hope to continue supporting you on your journey of awareness and health! Yours, Flo
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
23,99 zł
Ovulation Tracker
Understand your fertile days
59,99 zł
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
