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
Hey Flo team!I am not sure if this is the right place to submit this issue. But still I hope to hear from you because it would be devastating to have to move to any other cycle tracking application.I can’t tell the exact date when it started, because I don’t open the app every day, but at some point during the past month it wasn’t possible to use the app. It keeps saying that it “failed to load” and “update” (screenshot attached).I tried different networks, turning VPN on and off, updating the app, offloading and reinstalling the app, restarting the phone - nothing helped. Now I’m approaching my period, and I’m afraid that I won’t have the possibility to log the dates in Flo, thus I will be forced to switch to some other way of tracking, which I would really hate since I’ve stuck with Flo for more than 5 years and all of the info is there.Please guide me what else I can do to solve this issue 🙏Thank you sincerely.P.S. until this recent inconvenience, I had nothing but good to say about it. Thanks for your work and vision!
Developer Response
Hi aniablanche! We truly appreciate your feedback. To understand your request better and help you, please contact us from the app (Menu - Help - Contact us) or at support@flo.health and share the details of your case. We’ll do our best to assist you. Kind regards, Flo Team
Purchased without mu knowledge!
Mamulyan
This app withdrawn from my credit card money without my knowledge! I didn’t know i payed for premium account! But i don’t use this app( who can help me to understand how can i receive my money back?(((((( and it it was purchased twice( that is not okay(((
Developer Response
Hi there,Most features in Flo are free to use. We also offer Flo Premium to users who would like to have extra features and insights. The only way a user can sign up for a subscription is by tapping ‘Continue’ on the screen offering Flo Premium and confirming his/her consent with the password or Touch/Face ID. The app cannot sign up a user without his/her consent.To cancel the subscription, please follow the steps below:1. Launch the standard iOS Settings app .2. Tap your name, then tap Subscriptions.3. Tap the Subscription you want to cancel.4. Tap Cancel Subscription/Trial (if you don’t see this option, the subscription is already canceled and won't renew).5. 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.While we are aware of your subscription status via Apple, we can’t manage or control your subscription and payments. A decision on the refund must be made by Apple.If you would like to request a refund, please follow these steps:1. Open a Web browser and head to reportaproblem.apple.com.2. Sign into your iTunes account with your regular username and password.3. Find Flo, then click the ‘Report a Problem’ button next to it.4. Tap ‘Choose Problem’ and select a problem from the menu.5. Enter details for your problem, then tap ‘Submit’.After that, you must receive an email from Apple with a decision.Kind regards,Flo Support Team
Great app although…
Maga128383
This is the best cycle tracker I have ever used. Although there is a serious bug! When I changed mode to pregnancy the tracker lost my last period’s days which is a very important information. When you log your last period then change the mode to pregnancy it doesn’t show that last period. Please, fix this issue.
Developer Response
Hi Maga128383! We truly appreciate your feedback. To understand your request better and help you, please contact us from the app (Menu — Help — Contact us) and share the details of your case. We’ll do our best to assist you. Kind regards, Flo Team
Too many pop ups
sevenfives
Flo has been a really great app, I’ve been using it for ages. But already for some time each time I open the app I am bombarded with pop ups trying to sell me something or show me something unrelevant. I just want to view my calendar, instead I have to close annoying pop ups 3 times minimum. This is insane. Unfortunately I will have to switch to another period tracking app.
Developer Response
Hello there! We’re sorry if you found our promotion of Flo Premium a bit pushy! We’ve been working hard to develop our product so that it’s helpful on your journey to becoming healthier every day. While we would be pleased to have you try Flo Premium, we value all of our users, whether they subscribe or decide to use the free version.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 4.49
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
