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’d recommend this app to any menstruating female. It is an app that has many helpful features such as mood trackers and of course a period diary. It always has the ability to send notifications along with anonymous chat and many useful insights. If you're looking for a period app with mood and symptoms and how heavy your period is and how it differs this is the best one on the market right now. (But tbh I think another feature like tracking your diet and more detailed visuals and smarter assistance when logging period symptoms dates and things like that, even though that may be highly ambitious. I think the mood tracker should mirror in app purchased apps daylio as that app is great for checking your mood but important features are not free of charge, so I think if flo would allow you to log your emotions and have features such as daylio would save me alot of money. Also if it could tell me if what I’m eating would have an affect of my period or pregnancy or whatever rather than just my water intake, maybe a what did you eat tab or something I don’t really know what I’m requesting for. Also automatic sleep tracker another request/suggestion from in app purchasable apps). Overall my opinion of the app is that it is great and very very useful.
Developer Response
Hello Honesty,Thank you for sharing your positive experience! We really appreciate your feedback. We’re constantly working on improving Flo and we hope that we can make it even more useful and interesting for you in the future.Kind regards,Flo Support Team
Great for tracking but feel they now take advantage of people
The reviewer467.
I’ve been using the Flo app for over 5 years. It’s brilliant for tracking your period and logging symptoms. It’s also quite accurate for calculating the next time you come on. I would recommend it to anyone wanting that. When I first downloaded the app I thought it was absolutely brilliant and a positive way forward for people wanting to know more on their health topics. However, over year years I’ve been using this app the other features have become what feels like a money scheme to target people wanting to find out more about their health . Originally, anyone who uses the app were able to freely access information pages and forums on health related topics. The content of these were brilliant and would bring peace of mind for things many would stress about. Then a year to two into using the app features became restricted making people pay for accessing some features. However, the usual articles and forums were still free to read/use. Jumping to now, where the Flo app has completely restricted all access and help to people and forces them to pay premium. It’s feeling like they have isolated members of this community. It now feels like they are tacking advantage of the fact people want to know and get help for health related topics. Where in the past they used to actively support their members. I understand having some features paid for as the app need funds. However, I feel they have gone completely over the top.
Be careful about payment
kinkykinzy
The app itself is fine. The payment is a joke. Having read other reviews I was careful to make sure I had selected the monthly payments, however I was still charged £43 in a lump sum. Make sure you go to your subscriptions and check the monthly payment. There is no need to charge for a year with an app like this. No one wants to payout a lump sum like that, it doesn’t give you the option to cancel it then if the app doesn’t meet your needs! Or maybe that’s the point, they aren’t confident in their app, so take full payment up front expecting people to cancel. Well...I won’t be renewing next year simply because of that.UPDATE: the developer has “helpfully” told me how to cancel this subscription...which I already know how to do and have done. This was not the issue I stated. The issue I have is that, despite selecting to pay monthly, I was charged for an entire year in a lump sum. I was warning people to double check their subscriptions once they finish the free trial, as it appears selecting the monthly payment option in the app does not work. I was explaining that it was a disappointment to discover this had happened as I feel cheated out of my money, as I now have no option to cancel if after a few cycles I find the app does not meet my needs. If the app does not meet my needs, I will now be out of pocket as I will have paid for months of use that I will not be using.
Developer Response
Hi,Thank you for using Flo and contacting us!To cancel the subscription please follow the steps below:1. Launch the Settings app.2. Tap iTunes & App Store.3. Tap on your Apple ID.4. Tap View Apple ID when the pop up window appears.5. Enter your Apple ID password or fingerprint ID when prompted.6. Tap Subscriptions.7. Tap the Subscription you want to cancel.8. Tap Cancel Subscription/Trial.9. Tap Confirm when prompted to confirm that you want to cancel your subscription.This must be done 24 hours before the end of a free trial or subscription period.Best regards, Alexandra
Bed experience
Hemit D
I have pcos problem and this app wasn’t helpful for me and The payment is a joke. Having read other reviews I was careful to make sure I had selected the monthly payments, however I was still charged £43 in a lump sum. Directly for premium membership Make sure you go to your subscriptions and check the monthly payment. There is no need to charge for a year with an app like this. No one wants to payout a lump sum like that, it doesn't give you the option to cancel it then if the app doesn't meet your needs! Or maybe that's the point, they aren't confident in their app, so take full payment up front expecting people to cancel.Well...I won't be renewing next year simply because of that.UPDATE: the developer has "helpfully" told me how to cancel this subscription...which I already know how to do and have done. This was not the issue I stated. The issue I have is that, despite selecting to pay monthly, I was charged for an entire year in a lump sum. I was warning people to double check their subscriptions once they finish the free trial, as it appears selecting the monthly payment option in the app does not work. I was explaining that it was a disappointment to discover this had happened as I feel cheated out of my money, as I now have no option to cancel if after a few cycles I find the app does not meet my needs. If the app does not meet my needs, I will now be out of pocket as I will have paid for months of use that I will not be using.
Developer Response
Hi Hemit D! Thanks for reaching out to us. Flo Premium is optional and provides access to all features of the app; however, the app’s main functions are available free of charge. Deleting the app does not cancel a subscription, unfortunately, as it is tied to your Apple ID. Because Apple protects all billing information, the only way to request a refund is to contact Apple directly. To request a refund: 1. Go to reportaproblem.apple.com. 2. Sign in with your Apple ID and password. 3. Tap or click “I’d like to.” 4. Choose “Request a refund.” 5. Choose the reason why you want a refund, then choose Next. 6. Choose Flo, then choose Submit. After that, you’ll receive an email from Apple with a decision. Let us know if you need additional guidance at support@flo.health or Menu — Help — Contact us in the Flo app. Best regards, Flo Period and Ovulation tracker Support 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 10.8.0
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
£6.99
Ovulation Tracker
Understand your fertile days
£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
