Flo: Period & Cycle Health

Ovulation & Pregnancy Tracker

Free · In-App Purchases

5.9k Ratings
Age Rating

13+
In-App Controls
Chart

No. 11
Health & Fitness
Developer

FLO HEALTH UK LIMITED
Language

EN
+ 20 More
Size

347.7
MB

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

Events

MAJOR UPDATE
Flori: Decode how you feel

Flori helps you track your sleep, cycle symptoms, and energy so you can understand what your body might need.

Ratings & Reviews

4.8

out of 5

5.9k Ratings

Great app! Highly recommended!
17/09/2017
Vicky25555
Really easy to use, it has everything one could wish for in such an app. I've tried other, similar ones, but I'm most happy with this one and would definitely recommend it.

Developer Response
Hi there,Thank you for your lovely feedback. We are always happy to hear from users who are advocating for Flo, and we encourage you to continue doing so!Kind regards,Flo Support Team
Great app! Highly recommended!
17/09/2017
Vicky25555

Really easy to use, it has everything one could wish for in such an app. I've tried other, similar ones, but I'm most happy with this one and would definitely recommend it.
Developer Response 15/04/2021
Hi there,Thank you for your lovely feedback. We are always happy to hear from users who are advocating for Flo, and we encourage you to continue doing so!Kind regards,Flo Support Team
Aggressive advertising
22/03/2023
Nicolehaytova
I’m using the app for more than 5 years and for the past 3 of them it’s only getting worse. I simply use it as a calendar to log my period. I use it once a month and then close it. It should be as easy as just a few clicks - opening it, logging what i need and closing it. But no - to do this one action now I have to close at least three ads of their Premium subscription. As if it is not annoying enough, after I close it the first time I receive a “Are you sure you want to miss this?”, which I have to close again. The way they advertise their subscription is just ridiculous. You lost a 5-year user. Hint: Ladies, your iPhone health app does a pretty decent job at menstrual tracking.

Developer Response
Hi Nicolehaytova! Thank you for sharing your feedback about Flo. In this latest version, we updated our algorithms to make Flo’s predictions even more accurate and useful, and we enhanced personalization options for Flo users. We also moved some features from the free plan to the Premium plan, which is why you may have seen paywalls prompting you to subscribe to our Premium plan to access certain types of content. Even with this change, the core features of our app (cycle tracking and prediction) remain free for everyone. We believe cycle tracking should be available to everyone who needs it, regardless of ability to pay. For users who are interested in our more advanced options, the funds we receive from our Premium subscribers enable the ongoing development of the app, and help keep the basics free for everyone. While some apps push ads and sell user data to make money, we are committed to remaining ad-free and keeping our user data safe, secure, and protected at all costs. Thanks to our subscription-based model, none of our users see annoying ads, and your data is safe and secure — regardless of whether or not you’re a subscriber. While we started out as a period tracker, we’ve since expanded our vision to become an all-in-one deeply personalized, holistic women’s health and wellbeing platform. We now have a team of over 450 passionate, dedicated employees and over 120 medical and health experts from medical schools and hospitals who make sure all the content in the app is medically credible and evidence-based. Our product managers and engineers work diligently to create a deeply personalized experience for our users and ensure that Flo is tailored to your needs, goals, and symptoms. Lastly, and most importantly, our data and security team implements best-in-class data security standards. We encourage you to check out Flo Premium. Each day, you’ll find personalized actionable tips based on your unique cycle phase and changes in hormone levels. Our Insights section also offers a robust, searchable library of multimedia health and well-being content We aim to take female health to an entirely new level and hope to make our app even more useful and supportive for you. If you have any other questions, please reach out at support@flo.health. Your feedback is truly valuable, and it helps us improve the app for you and for many others around the world. Kind Regards, Flo Team
Aggressive advertising
22/03/2023
Nicolehaytova

I’m using the app for more than 5 years and for the past 3 of them it’s only getting worse. I simply use it as a calendar to log my period. I use it once a month and then close it. It should be as easy as just a few clicks - opening it, logging what i need and closing it. But no - to do this one action now I have to close at least three ads of their Premium subscription. As if it is not annoying enough, after I close it the first time I receive a “Are you sure you want to miss this?”, which I have to close again. The way they advertise their subscription is just ridiculous. You lost a 5-year user. Hint: Ladies, your iPhone health app does a pretty decent job at menstrual tracking.
Developer Response 18/06/2025
Hi Nicolehaytova! Thank you for sharing your feedback about Flo. In this latest version, we updated our algorithms to make Flo’s predictions even more accurate and useful, and we enhanced personalization options for Flo users. We also moved some features from the free plan to the Premium plan, which is why you may have seen paywalls prompting you to subscribe to our Premium plan to access certain types of content. Even with this change, the core features of our app (cycle tracking and prediction) remain free for everyone. We believe cycle tracking should be available to everyone who needs it, regardless of ability to pay. For users who are interested in our more advanced options, the funds we receive from our Premium subscribers enable the ongoing development of the app, and help keep the basics free for everyone. While some apps push ads and sell user data to make money, we are committed to remaining ad-free and keeping our user data safe, secure, and protected at all costs. Thanks to our subscription-based model, none of our users see annoying ads, and your data is safe and secure — regardless of whether or not you’re a subscriber. While we started out as a period tracker, we’ve since expanded our vision to become an all-in-one deeply personalized, holistic women’s health and wellbeing platform. We now have a team of over 450 passionate, dedicated employees and over 120 medical and health experts from medical schools and hospitals who make sure all the content in the app is medically credible and evidence-based. Our product managers and engineers work diligently to create a deeply personalized experience for our users and ensure that Flo is tailored to your needs, goals, and symptoms. Lastly, and most importantly, our data and security team implements best-in-class data security standards. We encourage you to check out Flo Premium. Each day, you’ll find personalized actionable tips based on your unique cycle phase and changes in hormone levels. Our Insights section also offers a robust, searchable library of multimedia health and well-being content We aim to take female health to an entirely new level and hope to make our app even more useful and supportive for you. If you have any other questions, please reach out at support@flo.health. Your feedback is truly valuable, and it helps us improve the app for you and for many others around the world. Kind Regards, Flo Team
Some symptoms are gone
10/07/2022
L but not ST El
after getting a new phone i got the new version of the app and the problem is symptoms like abdominal pain and perineum pain and all the symptoms related to breasts are completely gone. i used to use those and would track cyclical breast pain and was able to understand my body better. also i would use the abdominal pain one to track my ovulation but now they’re all gone and i can’t even see these symptoms on the days when i didn’t have the update. now if i need to go and see a doctor regarding these issues i won’t be able to give them full insight on when it happened to help understand it better, we need those symptoms back

Developer Response
Hi there! Unfortunately, the feature you mentioned in your request is no longer available in the app. We're sorry if this caused any inconvenience. Please let us know if there’s anything else we can help you with. Yours, Flo
Some symptoms are gone
10/07/2022
L but not ST El

after getting a new phone i got the new version of the app and the problem is symptoms like abdominal pain and perineum pain and all the symptoms related to breasts are completely gone. i used to use those and would track cyclical breast pain and was able to understand my body better. also i would use the abdominal pain one to track my ovulation but now they’re all gone and i can’t even see these symptoms on the days when i didn’t have the update. now if i need to go and see a doctor regarding these issues i won’t be able to give them full insight on when it happened to help understand it better, we need those symptoms back
Developer Response 30/09/2024
Hi there! Unfortunately, the feature you mentioned in your request is no longer available in the app. We're sorry if this caused any inconvenience. Please let us know if there’s anything else we can help you with. Yours, Flo
It’s annoying
02/09/2025
MayaS -
Hey, the main purpose of this app is to track period, right? I would like just to open it, track the dates, check the patterns, pretty straightforward. Instead I am forced to wait for the stupid animations across the whole interface and the same error message “failed to get cycle predictions”. All right, I already got that your algorithms wont be able to fix themselves although there’s data. Why the interface is so “pop-ups, hints, animations, effects” heavy, when at some point all turned out to be completely useless? I am still paying yearly subscription and I cannot even receive appropriate support. Completely dislike your app.

Developer Response
Hi MayaS! We’re very sorry to hear about your experience. Can you send us a message (Menu — Help — Contact us) containing “App Store #00101” as both the subject and the body of your message? This will help us investigate the issue and proceed with your request. We will be happy to help! Best regards, Flo Team
It’s annoying
02/09/2025
MayaS -

Hey, the main purpose of this app is to track period, right? I would like just to open it, track the dates, check the patterns, pretty straightforward. Instead I am forced to wait for the stupid animations across the whole interface and the same error message “failed to get cycle predictions”. All right, I already got that your algorithms wont be able to fix themselves although there’s data. Why the interface is so “pop-ups, hints, animations, effects” heavy, when at some point all turned out to be completely useless? I am still paying yearly subscription and I cannot even receive appropriate support. Completely dislike your app.
Developer Response 25/05/2025
Hi MayaS! We’re very sorry to hear about your experience. Can you send us a message (Menu — Help — Contact us) containing “App Store #00101” as both the subject and the body of your message? This will help us investigate the issue and proceed with your request. We will be happy to help! Best 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 22 Oct

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

3,79 €
Ovulation Tracker

Understand your fertile days

11,99 €

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

Information

Size: 347.7 MB
Category: Health & Fitness
Compatibility: Requires iOS 17.0 or later.

iPhone
Requires iOS 17.0 or later.

Apple Vision
Requires visionOS 1.0 or later.

Apple Watch
Requires watchOS 10.0 or later.
Languages: English and 20 more

English, Danish, Finnish, French, German, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
Age Rating: 13+

13+

This app is rated 13+ with content restrictions.

Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls.
Learn More

In-App Controls
Age Assurance

Infrequent
Medical Treatment Information

Contains
User-Generated Content
Health or Wellness Topics
In-App Purchases: Yes

Flo Ovulation & Health tracker 4,99 €

Flo Premium 31,99 €

Flo Premium 14,99 €

Flo Premium 15,99 €

Flo Ovulation & Health tracker 7,49 €

Flo Premium 37,99 €

Flo Ovulation & Health tracker 4,99 €

Flo Premium 11,99 €

Flo Premium 39,99 €

Flo Premium 24,99 €

Learn More
Provider: FLO HEALTH UK LIMITED

FLO HEALTH UK LIMITED has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.

DUNS Number
080334153

Address
27 Old Gloucester Street
London
N/A
WC1N 3AX
United Kingdom

Phone Number
+1 8556948157

Email
info@flo.health

Developer Website

Privacy Policy

Featured In

HEALTH AND WELLBEING

Perimenopause decoded with Flo

Better understand your body before it surprises you.
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Flo: Period & Cycle Health

Events

Flori: Decode how you feel

Ratings & Reviews

Great app! Highly recommended!

Aggressive advertising

Some symptoms are gone

It’s annoying

What’s New

Subscriptions

Flo: Cycle Tracker

Flo Pregnancy Tracker

Flo Birth Control Reminder

Flo Women's Health & Wellbeing

Ovulation Tracker

App Privacy

Data Used to Track You

Data Linked to You

Accessibility

Information

Featured In

Perimenopause decoded with Flo

OUR FAVOURITES

iPhone essentials

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