Flo Cycle & Period Tracker
Ovulation & Pregnancy Calendar
| Revenue % | |||||
|---|---|---|---|---|---|
| Annual · 14 days trial | 166 | $13.02 – $69.44 | 24.8% | +18.0% | |
| Monthly | 148 | $2.34 – $17.33 | 24.8% | +18.0% | |
| Annual · 14 days trial | 123 | $13.02 – $66.66 | 24.8% | +18.0% | |
| Annual | 121 | $2.93 – $24.99 | 24.8% | +18.0% | |
| Weekly · 7 days trial | 108 | $1.22 – $2.99 | 24.8% | +18.0% | |
| Annual | 93 | $2.93 – $19.99 | 24.8% | +18.0% | |
| Annual | 86 | $8.54 – $46.02 | 24.8% | +18.0% | |
| Annual · 14 days trial | 84 | $9.99 – $53.98 | 24.8% | +18.0% | |
| Annual · 7 days trial | 84 | $13.45 – $63.05 | 24.8% | +18.0% | |
| Annual | 77 | $13.07 – $55.45 | 24.8% | +18.0% |
Description
Flo is a science-backed period tracker, ovulation tracker, fertility, and pregnancy app used by over 500 million* women 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 500 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
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 (Flo is not a method of birth control)
Can Flo support my Trying To Conceive (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?
Unlock deeper, personalized insights and advanced tracking tools 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** that provides educational information on PCOS, endometriosis, and fibroids symptoms
Ovulation insights to support your TTC journey
24/7 virtual Health Assistant for educational support
Flo for Partners: Share updates like menstrual cycle predictions or pregnancy progress, and always stay in control of what you share with your partner
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, July 2026
**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
Last collected from the App Store on