七麦数据

Welcome to Flo, the trusted period tracker, ovulation tracker, and pregnancy app used by millions worldwide.

Whether you’re tracking your period (regular or irregular), trying to conceive, following changes to your baby and your body during pregnancy, or navigating perimenopause symptoms, Flo is here to support you. Join 440 million users* who use Flo’s science-backed insights, created with 100+ doctors and medical experts, to better understand their menstrual cycle.

Is my data safe with Flo?
Your health data deserves the highest level of protection.

Flo was recognized as ISO 27001/ISMS Team of the Year at the 2025 PICCASO Privacy and Security Awards, honoring our excellence in information security management and long-standing commitment to privacy-first design.

- Anonymous Mode: Use the Flo period tracker without linking your name, email, or personal identifiers
- Dual ISO certification: Industry-leading security standards to keep your data safe
- Flo for Partners: Share updates like menstrual cycle predictions or pregnancy progress, and always stay in control of what you share with your partner
- Secret Chats: Connect with like-minded members who share tips and personal experiences

Why choose Flo for period and ovulation tracking?
Flo is more than a basic calendar — it’s a smart period tracker designed to help you notice patterns over time.

- Log 70+ symptoms and moods to receive more personalized menstrual cycle insights
- Support for irregular periods, pre-period symptoms, and cycle changes
- Clear summaries you can share with your doctor
- An accurate period tracker to help you plan ahead with confidence

Can Flo support my TTC journey?
Flo offers educational features to support your journey to conceive and better understand fertility.

- Fertile window and ovulation predictions based on your logged period data
- BBT (basal body temperature) tracking
- Daily insights to help you prepare to conceive a baby
- Partner tools to support shared awareness

How does Flo support my pregnancy by week?
Once you conceive, switch to Flo for Pregnancy for useful checklists and structured, week-by-week guidance.

- Pregnancy tracking with weekly updates as your baby develops
- Visuals and diagrams to help explain pregnancy changes
- Symptom tracking, reminders, and organization tools
- Expert-reviewed content and community stories for peace of mind

Is Flo suitable for teens and first periods?
Flo provides a safe space for teens to track their first period with age-appropriate education, helping them navigate puberty confidently.

Can Flo help me manage perimenopause symptoms?
Track changes during perimenopause with tools designed for this life stage.

- Perimenopause Score to follow symptom changes month by month
- Track cycle-related changes in sleep, energy, mood, and well-being
- Clear, personalized insights

What do I get with Flo Premium?

- Daily, personalized insights
- Expert-led video courses on fertility, pregnancy, and birth
- In-depth pregnancy features for every milestone and baby stage
- Symptom Checker** for PCOS, endometriosis, and fibroids symptoms
- Ovulation insights to support your TTC journey
- 24/7 virtual Health Assistant

Medical disclaimer
Flo does not provide medical advice, diagnosis, or treatment, and is not a method of birth control. Predictions are for informational purposes only. Always consult a qualified healthcare professional.

Download Flo today and join millions using a trusted period tracker, pregnancy app, and fertility companion.

*Total number of users who downloaded Flo, December 2025
**Symptom checker not available in the UK or EU

Privacy Policy: https://flo.health/privacy-policy
Terms of Use: https://flo.health/terms-of-service

Welcome to Flo, the trusted period tracker, ovulation tracker, and pregnancy app used by millions worldwide.

Whether you’re tracking your period (regular or irregular), trying to conceive, following changes to your baby and your body during pregnancy, or navigating perimenopause symptoms, Flo is here to support you. Join 440 million users* who use Flo’s science-backed insights, created with 100+ doctors and medical experts, to better understand their menstrual cycle.

Is my data safe with Flo?
Your health data deserves the highest level of protection.

Flo was recognized as ISO 27001/ISMS Team of the Year at the 2025 PICCASO Privacy and Security Awards, honoring our excellence in information security management and long-standing commitment to privacy-first design.

- Anonymous Mode: Use the Flo period tracker without linking your name, email, or personal identifiers
- Dual ISO certification: Industry-leading security standards to keep your data safe
- Flo for Partners: Share updates like menstrual cycle predictions or pregnancy progress, and always stay in control of what you share with your partner
- Secret Chats: Connect with like-minded members who share tips and personal experiences

Why choose Flo for period and ovulation tracking?
Flo is more than a basic calendar — it’s a smart period tracker designed to help you notice patterns over time.

- Log 70+ symptoms and moods to receive more personalized menstrual cycle insights
- Support for irregular periods, pre-period symptoms, and cycle changes
- Clear summaries you can share with your doctor
- An accurate period tracker to help you plan ahead with confidence

Can Flo support my TTC journey?
Flo offers educational features to support your journey to conceive and better understand fertility.

- Fertile window and ovulation predictions based on your logged period data
- BBT (basal body temperature) tracking
- Daily insights to help you prepare to conceive a baby
- Partner tools to support shared awareness

How does Flo support my pregnancy by week?
Once you conceive, switch to Flo for Pregnancy for useful checklists and structured, week-by-week guidance.

- Pregnancy tracking with weekly updates as your baby develops
- Visuals and diagrams to help explain pregnancy changes
- Symptom tracking, reminders, and organization tools
- Expert-reviewed content and community stories for peace of mind

Is Flo suitable for teens and first periods?
Flo provides a safe space for teens to track their first period with age-appropriate education, helping them navigate puberty confidently.

Can Flo help me manage perimenopause symptoms?
Track changes during perimenopause with tools designed for this life stage.

- Perimenopause Score to follow symptom changes month by month
- Track cycle-related changes in sleep, energy, mood, and well-being
- Clear, personalized insights

What do I get with Flo Premium?

- Daily, personalized insights
- Expert-led video courses on fertility, pregnancy, and birth
- In-depth pregnancy features for every milestone and baby stage
- Symptom Checker** for PCOS, endometriosis, and fibroids symptoms
- Ovulation insights to support your TTC journey
- 24/7 virtual Health Assistant

Medical disclaimer
Flo does not provide medical advice, diagnosis, or treatment, and is not a method of birth control. Predictions are for informational purposes only. Always consult a qualified healthcare professional.

Download Flo today and join millions using a trusted period tracker, pregnancy app, and fertility companion.

*Total number of users who downloaded Flo, December 2025
**Symptom checker not available in the UK or EU

Privacy Policy: https://flo.health/privacy-policy
Terms of Use: https://flo.health/terms-of-service

Welcome to the world’s leading period tracker*, backed by 120+ doctors and medical experts, recommended by OB-GYNs, and trusted by 430M+ women worldwide.
Whether you're tracking your menstrual cycle, trying to conceive (TTC), understanding PMS or PMDD, or navigating pregnancy or perimenopause, Flo is here for every life stage.
With Flo’s period tracker, you’ll get personalized insights, accurate menstrual cycle predictions, and a better understanding of your ovulation, fertility, pregnancy, and overall health. Join Flo’s growing community today.

Why Choose Flo?

Easy: It’s a period tracker, ovulation tracker for those trying to conceive, pregnancy tracker, mood tracker, and a guide for understanding symptoms of perimenopause to PCOS, endometriosis and fibroids all in one app.
• Trusted by 430M+ worldwide with over 10 million 5-star ratings.
• With Flo’s period diary, log symptoms daily to uncover cycle trends, learn what they might mean, and feel more prepared for doctor visits.
• Set birth control reminders.
• Use our ovulation tracker to better recognize your fertile signs. Combine it with BBT (basal body temperature) logging and expert TTC tips. The ovulation tracker is especially helpful for couples on a trying-to-conceive (TTC) journey.
• Check if symptoms match those common in PCOS, endometriosis, uterine fibroids, or perimenopause with our Symptom Checker tool.**
• Sync Flo’s period tracker with your smartwatch or wearable.
• Teens can use Flo’s period tracker to understand their first menstrual cycles and track symptoms in a safe space.
• Flo for Partners: Share Flo with your partner to get support during your menstrual cycle, make TTC a joint effort, or track your pregnancy journey week by week with our comprehensive pregnancy tracker.
• Track each trimester using Flo’s pregnancy tracker, which offers weekly updates, expert content, and baby development milestones. It’s more than just a calendar—it’s a full companion during your pregnancy.
• Stay on top of changes caused by hormone shifts, including potential irregular cycles, during perimenopause with dedicated tracking tools and expert guidance.
• Understanding PMS and PMDD and tracking your mood could help you notice menstrual cycle patterns and plan ahead.
• Keep a detailed period diary to understand if you have irregular cycles.
• Support your self-care goals with insights to guide daily habits like sleep or physical activity.
• Practice self-care with mental health tips. Reflect on your emotions and spot patterns with our mood tracker.
• Industry-leading privacy and security with dual ISO certification.
• Optional Anonymous Mode protects your identity — no one, not even Flo, can identify you through your health data.


Enjoy more features with Flo Premium:
• Personalized symptom patterns analysis.
• Symptom Checker for PCOS, perimenopause, endometriosis, and more.
• In-depth pregnancy tracker functionality for each milestone.
• Flo for Partners: Full menstrual cycle sharing designed for couples.
• 24/7 virtual Health Assistant.
• Expert-reviewed articles, videos, and courses.
• Information around birth control and fertility planning.
• Advanced ovulation tracker tools to help you understand fertility insights.


Please note: Flo is not a diagnostic tool and should not be used as a method of birth control or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.

Contact support@flo.health for assistance with our period tracker and ovulation tracker.

Download Flo today and join the millions of women who trust Flo.

* Sensor Tower, March 2025, by downloads.
** Not available in the UK or EU.

Privacy: https://flo.health/privacy-policy
EULA: https://flo.health/terms-of-service

Welcome to the world’s leading period tracker*, backed by 120+ doctors and medical experts, recommended by OB-GYNs, and trusted by 430M+ women worldwide.
Whether you're tracking your menstrual cycle, trying to conceive (TTC), understanding PMS or PMDD, or navigating pregnancy or perimenopause, Flo is here for every life stage.
With Flo’s period tracker, you’ll get personalized insights, accurate menstrual cycle predictions, and a better understanding of your ovulation, fertility, pregnancy, and overall health. Join Flo’s growing community today.

Why Choose Flo?

Easy: It’s a period tracker, ovulation tracker for those trying to conceive, pregnancy tracker, mood tracker, and a guide for understanding symptoms of perimenopause to PCOS, endometriosis and fibroids all in one app.
• Trusted by 430M+ worldwide with over 10 million 5-star ratings.
• With Flo’s period diary, log symptoms daily to uncover cycle trends, learn what they might mean, and feel more prepared for doctor visits.
• Set birth control reminders.
• Use our ovulation tracker to better recognize your fertile signs. Combine it with BBT (basal body temperature) logging and expert TTC tips. The ovulation tracker is especially helpful for couples on a trying-to-conceive (TTC) journey.
• Check if symptoms match those common in PCOS, endometriosis, uterine fibroids, or perimenopause with our Symptom Checker tool.**
• Sync Flo’s period tracker with your smartwatch or wearable.
• Teens can use Flo’s period tracker to understand their first menstrual cycles and track symptoms in a safe space.
• Flo for Partners: Share Flo with your partner to get support during your menstrual cycle, make TTC a joint effort, or track your pregnancy journey week by week with our comprehensive pregnancy tracker.
• Track each trimester using Flo’s pregnancy tracker, which offers weekly updates, expert content, and baby development milestones. It’s more than just a calendar—it’s a full companion during your pregnancy.
• Stay on top of changes caused by hormone shifts, including potential irregular cycles, during perimenopause with dedicated tracking tools and expert guidance.
• Understanding PMS and PMDD and tracking your mood could help you notice menstrual cycle patterns and plan ahead.
• Keep a detailed period diary to understand if you have irregular cycles.
• Support your self-care goals with insights to guide daily habits like sleep or physical activity.
• Practice self-care with mental health tips. Reflect on your emotions and spot patterns with our mood tracker.
• Industry-leading privacy and security with dual ISO certification.
• Optional Anonymous Mode protects your identity — no one, not even Flo, can identify you through your health data.


Enjoy more features with Flo Premium:
• Personalized symptom patterns analysis.
• Symptom Checker for PCOS, perimenopause, endometriosis, and more.
• In-depth pregnancy tracker functionality for each milestone.
• Flo for Partners: Full menstrual cycle sharing designed for couples.
• 24/7 virtual Health Assistant.
• Expert-reviewed articles, videos, and courses.
• Information around birth control and fertility planning.
• Advanced ovulation tracker tools to help you understand fertility insights.


Please note: Flo is not a diagnostic tool and should not be used as a method of birth control or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.

Contact support@flo.health for assistance with our period tracker and ovulation tracker.

Download Flo today and join the millions of women who trust Flo.

* Sensor Tower, March 2025, by downloads.
** Not available in the UK or EU.

Privacy: https://flo.health/privacy-policy
EULA: https://flo.health/terms-of-service

Welcome to the world’s leading period tracker*, backed by 120+ doctors and medical experts, recommended by OB-GYNs, and trusted by 430M+ women worldwide.
Whether you're tracking your menstrual cycle, trying to conceive (TTC), understanding PMS or PMDD, or navigating pregnancy or perimenopause, Flo is here for every life stage.
With Flo’s period tracker, you’ll get personalized insights, accurate menstrual cycle predictions, and a better understanding of your ovulation, fertility, pregnancy, and overall health. Join Flo’s growing community today.

Why Choose Flo?

Easy: It’s a period tracker, ovulation tracker for those trying to conceive, pregnancy tracker, mood tracker, and a guide for understanding symptoms of perimenopause to PCOS, endometriosis and fibroids all in one app.
• Trusted by 430M+ worldwide with over 10 million 5-star ratings.
• With Flo’s period diary, log symptoms daily to uncover cycle trends, learn what they might mean, and feel more prepared for doctor visits.
• Set birth control reminders.
• Use our ovulation tracker to better recognize your fertile signs. Combine it with BBT (basal body temperature) logging and expert TTC tips. The ovulation tracker is especially helpful for couples on a trying-to-conceive (TTC) journey.
• Check if symptoms match those common in PCOS, endometriosis, uterine fibroids, or perimenopause with our Symptom Checker tool.**
• Sync Flo’s period tracker with your smartwatch or wearable.
• Teens can use Flo’s period tracker to understand their first menstrual cycles and track symptoms in a safe space.
• Flo for Partners: Share Flo with your partner to get support during your menstrual cycle, make TTC a joint effort, or track your pregnancy journey week by week with our comprehensive pregnancy tracker.
• Track each trimester using Flo’s pregnancy tracker, which offers weekly updates, expert content, and baby development milestones. It’s more than just a calendar—it’s a full companion during your pregnancy.
• Stay on top of changes caused by hormone shifts, including potential irregular cycles, during perimenopause with dedicated tracking tools and expert guidance.
• Understanding PMS and PMDD and tracking your mood could help you notice menstrual cycle patterns and plan ahead.
• Keep a detailed period diary to understand if you have irregular cycles.
• Support your self-care goals with insights to guide daily habits like sleep or physical activity.
• Practice self-care with mental health tips. Reflect on your emotions and spot patterns with our mood tracker.
• Industry-leading privacy and security with dual ISO certification.
• Optional Anonymous Mode protects your identity — no one, not even Flo, can identify you through your health data.


Enjoy more features with Flo Premium:
• Personalized symptom patterns analysis.
• Symptom Checker for PCOS, perimenopause, endometriosis, and more.
• In-depth pregnancy tracker functionality for each milestone.
• Flo for Partners: Full menstrual cycle sharing designed for couples.
• 24/7 virtual Health Assistant.
• Expert-reviewed articles, videos, and courses.
• Information around birth control and fertility planning.
• Advanced ovulation tracker tools to help you understand fertility insights.


Please note: Flo is not a diagnostic tool and should not be used as a method of birth control or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.

Contact support@flo.health for assistance with our period tracker and ovulation tracker.

Download Flo today and join the millions of women who trust Flo.

* Sensor Tower, March 2025, by downloads.
** Not available in the UK or EU.

Privacy: https://flo.health/privacy-policy
EULA: https://flo.health/terms-of-service

Welcome to the world’s leading period tracker*, backed by 120+ doctors and medical experts, recommended by OB-GYNs, and trusted by 430M+ women worldwide.
Whether you're tracking your menstrual cycle, trying to conceive (TTC), understanding PMS or PMDD, or navigating pregnancy or perimenopause, Flo is here for every life stage.
With Flo’s period tracker, you’ll get personalized insights, accurate menstrual cycle predictions, and a better understanding of your ovulation, fertility, pregnancy, and overall health. Join Flo’s growing community today.

Why Choose Flo?

Easy: It’s a period tracker, ovulation tracker for those trying to conceive, pregnancy tracker, mood tracker, and a guide for understanding symptoms of perimenopause to PCOS, endometriosis and fibroids all in one app.
• Trusted by 430M+ worldwide with over 10 million 5-star ratings.
• With Flo’s period diary, log symptoms daily to uncover cycle trends, learn what they might mean, and feel more prepared for doctor visits.
• Set birth control reminders.
• Use our ovulation tracker to better recognize your fertile signs. Combine it with BBT (basal body temperature) logging and expert TTC tips. The ovulation tracker is especially helpful for couples on a trying-to-conceive (TTC) journey.
• Check if symptoms match those common in PCOS, endometriosis, uterine fibroids, or perimenopause with our Symptom Checker tool.**
• Sync Flo’s period tracker with your smartwatch or wearable.
• Teens can use Flo’s period tracker to understand their first menstrual cycles and track symptoms in a safe space.
• Flo for Partners: Share Flo with your partner to get support during your menstrual cycle, make TTC a joint effort, or track your pregnancy journey week by week with our comprehensive pregnancy tracker.
• Track each trimester using Flo’s pregnancy tracker, which offers weekly updates, expert content, and baby development milestones. It’s more than just a calendar—it’s a full companion during your pregnancy.
• Stay on top of changes caused by hormone shifts, including potential irregular cycles, during perimenopause with dedicated tracking tools and expert guidance.
• Understanding PMS and PMDD and tracking your mood could help you notice menstrual cycle patterns and plan ahead.
• Keep a detailed period diary to understand if you have irregular cycles.
• Support your self-care goals with insights to guide daily habits like sleep or physical activity.
• Practice self-care with mental health tips. Reflect on your emotions and spot patterns with our mood tracker.
• Industry-leading privacy and security with dual ISO certification.
• Optional Anonymous Mode protects your identity — no one, not even Flo, can identify you through your health data.


Enjoy more features with Flo Premium:
• Personalized symptom patterns analysis.
• Symptom Checker for PCOS, perimenopause, endometriosis, and more.
• In-depth pregnancy tracker functionality for each milestone.
• Flo for Partners: Full menstrual cycle sharing designed for couples.
• 24/7 virtual Health Assistant.
• Expert-reviewed articles, videos, and courses.
• Information around birth control and fertility planning.
• Advanced ovulation tracker tools to help you understand fertility insights.


Please note: Flo is not a diagnostic tool and should not be used as a method of birth control or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.

Contact support@flo.health for assistance with our period tracker and ovulation tracker.

Download Flo today and join the millions of women who trust Flo.

* Sensor Tower, March 2025, by downloads.
** Not available in the UK or EU.

Privacy: https://flo.health/privacy-policy
EULA: https://flo.health/terms-of-service

Welcome to the world’s leading period tracker*, backed by 120+ doctors and medical experts, recommended by OB-GYNs, and trusted by 430M+ women worldwide.
Whether you're tracking your menstrual cycle, trying to conceive (TTC), understanding PMS or PMDD, or navigating pregnancy or perimenopause, Flo is here for every life stage.
With Flo’s period tracker, you’ll get personalized insights, accurate menstrual cycle predictions, and a better understanding of your ovulation, fertility, pregnancy, and overall health. Join Flo’s growing community today.

Why Choose Flo?

Easy: It’s a period tracker, ovulation tracker for those trying to conceive, pregnancy tracker, mood tracker, and a guide for understanding symptoms of perimenopause to PCOS, endometriosis and fibroids all in one app.
• Trusted by 430M+ worldwide with over 10 million 5-star ratings.
• With Flo’s period diary, log symptoms daily to uncover cycle trends, learn what they might mean, and feel more prepared for doctor visits.
• Set birth control reminders.
• Use our ovulation tracker to better recognize your fertile signs. Combine it with BBT (basal body temperature) logging and expert TTC tips. The ovulation tracker is especially helpful for couples on a trying-to-conceive (TTC) journey.
• Check if symptoms match those common in PCOS, endometriosis, uterine fibroids, or perimenopause with our Symptom Checker tool.**
• Sync Flo’s period tracker with your smartwatch or wearable.
• Teens can use Flo’s period tracker to understand their first menstrual cycles and track symptoms in a safe space.
• Flo for Partners: Share Flo with your partner to get support during your menstrual cycle, make TTC a joint effort, or track your pregnancy journey week by week with our comprehensive pregnancy tracker.
• Track each trimester using Flo’s pregnancy tracker, which offers weekly updates, expert content, and baby development milestones. It’s more than just a calendar—it’s a full companion during your pregnancy.
• Stay on top of changes caused by hormone shifts, including potential irregular cycles, during perimenopause with dedicated tracking tools and expert guidance.
• Understanding PMS and PMDD and tracking your mood could help you notice menstrual cycle patterns and plan ahead.
• Keep a detailed period diary to understand if you have irregular cycles.
• Support your self-care goals with insights to guide daily habits like sleep or physical activity.
• Practice self-care with mental health tips. Reflect on your emotions and spot patterns with our mood tracker.
• Industry-leading privacy and security with dual ISO certification.
• Optional Anonymous Mode protects your identity — no one, not even Flo, can identify you through your health data.


Enjoy more features with Flo Premium:
• Personalized symptom patterns analysis.
• Symptom Checker for PCOS, perimenopause, endometriosis, and more.
• In-depth pregnancy tracker functionality for each milestone.
• Flo for Partners: Full menstrual cycle sharing designed for couples.
• 24/7 virtual Health Assistant.
• Expert-reviewed articles, videos, and courses.
• Information around birth control and fertility planning.
• Advanced ovulation tracker tools to help you understand fertility insights.


Please note: Flo is not a diagnostic tool and should not be used as a method of birth control or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.

Contact support@flo.health for assistance with our period tracker and ovulation tracker.

Download Flo today and join the millions of women who trust Flo.

* Sensor Tower, March 2025, by downloads.
** Not available in the UK or EU.

Privacy: https://flo.health/privacy-policy
EULA: https://flo.health/terms-of-service

Welcome to the world’s leading period tracker*, backed by 120+ doctors and medical experts, recommended by OB-GYNs, and trusted by 430M+ women worldwide.
Whether you're tracking your menstrual cycle, trying to conceive (TTC), understanding PMS or PMDD, or navigating pregnancy or perimenopause, Flo is here for every life stage.
With Flo’s period tracker, you’ll get personalized insights, accurate menstrual cycle predictions, and a better understanding of your ovulation, fertility, pregnancy, and overall health. Join Flo’s growing community today.

Why Choose Flo?

Easy: It’s a period tracker, ovulation tracker for those trying to conceive, pregnancy tracker, mood tracker, and a guide for understanding symptoms of perimenopause to PCOS, endometriosis and fibroids all in one app.
• Trusted by 430M+ worldwide with over 10 million 5-star ratings.
• With Flo’s period diary, log symptoms daily to uncover cycle trends, learn what they might mean, and feel more prepared for doctor visits.
• Set birth control reminders.
• Use our ovulation tracker to better recognize your fertile signs. Combine it with BBT (basal body temperature) logging and expert TTC tips. The ovulation tracker is especially helpful for couples on a trying-to-conceive (TTC) journey.
• Check if symptoms match those common in PCOS, endometriosis, uterine fibroids, or perimenopause with our Symptom Checker tool.**
• Sync Flo’s period tracker with your smartwatch or wearable.
• Teens can use Flo’s period tracker to understand their first menstrual cycles and track symptoms in a safe space.
• Flo for Partners: Share Flo with your partner to get support during your menstrual cycle, make TTC a joint effort, or track your pregnancy journey week by week with our comprehensive pregnancy tracker.
• Track each trimester using Flo’s pregnancy tracker, which offers weekly updates, expert content, and baby development milestones. It’s more than just a calendar—it’s a full companion during your pregnancy.
• Stay on top of changes caused by hormone shifts, including potential irregular cycles, during perimenopause with dedicated tracking tools and expert guidance.
• Understanding PMS and PMDD and tracking your mood could help you notice menstrual cycle patterns and plan ahead.
• Keep a detailed period diary to understand if you have irregular cycles.
• Support your self-care goals with insights to guide daily habits like sleep or physical activity.
• Practice self-care with mental health tips. Reflect on your emotions and spot patterns with our mood tracker.
• Industry-leading privacy and security with dual ISO certification.
• Optional Anonymous Mode protects your identity — no one, not even Flo, can identify you through your health data.


Enjoy more features with Flo Premium:
• Personalized symptom patterns analysis.
• Symptom Checker for PCOS, perimenopause, endometriosis, and more.
• In-depth pregnancy tracker functionality for each milestone.
• Flo for Partners: Full menstrual cycle sharing designed for couples.
• 24/7 virtual Health Assistant.
• Expert-reviewed articles, videos, and courses.
• Information around birth control and fertility planning.
• Advanced ovulation tracker tools to help you understand fertility insights.


Please note: Flo is not a diagnostic tool and should not be used as a method of birth control or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.

Contact support@flo.health for assistance with our period tracker and ovulation tracker.

Download Flo today and join the millions of women who trust Flo.

* Sensor Tower, March 2025, by downloads.
** Not available in the UK or EU.

Privacy: https://flo.health/privacy-policy
EULA: https://flo.health/terms-of-service

Welcome to the world’s leading period tracker*, backed by 120+ doctors and medical experts, recommended by OB-GYNs, and trusted by 430M+ women worldwide.
Whether you're tracking your menstrual cycle, trying to conceive (TTC), understanding PMS or PMDD, or navigating pregnancy or perimenopause, Flo is here for every life stage.
With Flo’s period tracker, you’ll get personalized insights, accurate menstrual cycle predictions, and a better understanding of your ovulation, fertility, pregnancy, and overall health. Join Flo’s growing community today.

Why Choose Flo?

Easy: It’s a period tracker, ovulation tracker for those trying to conceive, pregnancy tracker, mood tracker, and a guide for understanding symptoms of perimenopause to PCOS, endometriosis and fibroids all in one app.
• Trusted by 430M+ worldwide with over 10 million 5-star ratings.
• With Flo’s period diary, log symptoms daily to uncover cycle trends, learn what they might mean, and feel more prepared for doctor visits.
• Set birth control reminders.
• Use our ovulation tracker to better recognize your fertile signs. Combine it with BBT (basal body temperature) logging and expert TTC tips. The ovulation tracker is especially helpful for couples on a trying-to-conceive (TTC) journey.
• Check if symptoms match those common in PCOS, endometriosis, uterine fibroids, or perimenopause with our Symptom Checker tool.**
• Sync Flo’s period tracker with your smartwatch or wearable.
• Teens can use Flo’s period tracker to understand their first menstrual cycles and track symptoms in a safe space.
• Flo for Partners: Share Flo with your partner to get support during your menstrual cycle, make TTC a joint effort, or track your pregnancy journey week by week with our comprehensive pregnancy tracker.
• Track each trimester using Flo’s pregnancy tracker, which offers weekly updates, expert content, and baby development milestones. It’s more than just a calendar—it’s a full companion during your pregnancy.
• Stay on top of changes caused by hormone shifts, including potential irregular cycles, during perimenopause with dedicated tracking tools and expert guidance.
• Understanding PMS and PMDD and tracking your mood could help you notice menstrual cycle patterns and plan ahead.
• Keep a detailed period diary to understand if you have irregular cycles.
• Support your self-care goals with insights to guide daily habits like sleep or physical activity.
• Practice self-care with mental health tips. Reflect on your emotions and spot patterns with our mood tracker.
• Industry-leading privacy and security with dual ISO certification.
• Optional Anonymous Mode protects your identity — no one, not even Flo, can identify you through your health data.


Enjoy more features with Flo Premium:
• Personalized symptom patterns analysis.
• Symptom Checker for PCOS, perimenopause, endometriosis, and more.
• In-depth pregnancy tracker functionality for each milestone.
• Flo for Partners: Full menstrual cycle sharing designed for couples.
• 24/7 virtual Health Assistant.
• Expert-reviewed articles, videos, and courses.
• Information around birth control and fertility planning.
• Advanced ovulation tracker tools to help you understand fertility insights.


Please note: Flo is not a diagnostic tool and should not be used as a method of birth control or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.

Contact support@flo.health for assistance with our period tracker and ovulation tracker.

Download Flo today and join the millions of women who trust Flo.

* Sensor Tower, March 2025, by downloads.
** Not available in the UK or EU.

Privacy: https://flo.health/privacy-policy
EULA: https://flo.health/terms-of-service

Welcome to the world’s leading period tracker*, backed by 120+ doctors and medical experts, recommended by OB-GYNs, and trusted by 420M+ women worldwide.
Whether you're tracking your menstrual cycle, trying to conceive (TTC), understanding PMS or PMDD, or navigating pregnancy or perimenopause, Flo is here for every life stage.
With Flo’s period tracker, you’ll get personalized insights, accurate menstrual cycle predictions, and a better understanding of your ovulation, fertility, pregnancy, and overall health. Join Flo’s growing community today.

Why Choose Flo?

Easy: It’s a period tracker, ovulation tracker for those trying to conceive, pregnancy tracker, mood tracker, and a guide for understanding symptoms of perimenopause to PCOS, endometriosis and fibroids all in one app.
• Trusted by 420M+ worldwide with over 10 million 5-star ratings.
• With Flo’s period diary, log symptoms daily to uncover cycle trends, learn what they might mean, and feel more prepared for doctor visits.
• Set birth control reminders.
• Use our ovulation tracker to better recognize your fertile signs. Combine it with BBT (basal body temperature) logging and expert TTC tips. The ovulation tracker is especially helpful for couples on a trying-to-conceive (TTC) journey.
• Check if symptoms match those common in PCOS, endometriosis, uterine fibroids, or perimenopause with our Symptom Checker tool.**
• Sync Flo’s period tracker with your smartwatch or wearable.
• Teens can use Flo’s period tracker to understand their first menstrual cycles and track symptoms in a safe space.
• Flo for Partners: Share Flo with your partner to get support during your menstrual cycle, make TTC a joint effort, or track your pregnancy journey week by week with our comprehensive pregnancy tracker.
• Track each trimester using Flo’s pregnancy tracker, which offers weekly updates, expert content, and baby development milestones. It’s more than just a calendar—it’s a full companion during your pregnancy.
• Stay on top of changes caused by hormone shifts, including potential irregular cycles, during perimenopause with dedicated tracking tools and expert guidance.
• Understanding PMS and PMDD and tracking your mood could help you notice menstrual cycle patterns and plan ahead.
• Keep a detailed period diary to understand if you have irregular cycles.
• Support your self-care goals with insights to guide daily habits like sleep or physical activity.
• Practice self-care with mental health tips. Reflect on your emotions and spot patterns with our mood tracker.
• Industry-leading privacy and security with dual ISO certification.
• Optional Anonymous Mode protects your identity — no one, not even Flo, can identify you through your health data.


Enjoy more features with Flo Premium:
• Personalized symptom patterns analysis.
• Symptom Checker for PCOS, perimenopause, endometriosis, and more.
• In-depth pregnancy tracker functionality for each milestone.
• Flo for Partners: Full menstrual cycle sharing designed for couples.
• 24/7 virtual Health Assistant.
• Expert-reviewed articles, videos, and courses.
• Information around birth control and fertility planning.
• Advanced ovulation tracker tools to help you understand fertility insights.


Please note: Flo is not a diagnostic tool and should not be used as a method of birth control or to facilitate conception. Predictions and insights provided by the app are intended for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for any health concerns or decisions.

Contact support@flo.health for assistance with our period tracker and ovulation tracker.

Download Flo today and join the millions of women who trust Flo.

* Sensor Tower, March 2025, by downloads.
** Not available in the UK or EU.

Privacy: https://flo.health/privacy-policy
EULA: https://flo.health/terms-of-service