Flo Cycle & Period Tracker

Ovulation & Pregnancy Calendar

Free · In‑App Purchases

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

  • 4.8
    out of 5
    1.7M Ratings

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

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, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Seller
    • FLO HEALTH UK LIMITED
  • Size
    • 240.8 MB
  • Category
    • Health & Fitness
  • Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    • Apple Watch
      Requires watchOS 9.0 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 has an age rating of 13+ with content restrictions. Some content may be rated higher, but access is managed by the developer through in-app controls.
    • In-App Controls
      Age Assurance

      Infrequent
      Medical Treatment information

      Contains
      User-Generated Content
      Health or Wellness Topics
  • In-App Purchases
    Yes
    • Flo Premium $59.99
    • Flo Ovulation & Health tracker $11.49
    • Flo Premium $1.99
    • Flo Premium $1.39
    • Flo Premium $47.99
    • Flo Ovulation & Health tracker $14.99
    • Flo Premium $14.99
    • Flo Birth Control Reminder $43.99
    • Flo Premium $1.99
    • Flo Pregnancy Tracker $49.99
  • Copyright
    • © Flo Health UK Limited