Important legal notice regarding our recent settlement with the FTC for users between June 30, 2016 and February 23, 2019. Read more

Track your health beyond periods.

#1 female OB-GYN-recommended app for period and cycle tracking

Based on a survey of 225 US OB-GYNs who recommend apps for period and cycle tracking, DRG, 2021
Feel your best with the Flo app.
  • Get accurate cycle predictions
  • Find patterns in your cycle
  • Personalized daily health insights
  • Anonymously discuss sensitive topics
  • Plan & follow your pregnancy
Explore Flo app
Flo expertise
Flo expertise
Flo expertise
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Our team of scientists, doctors and health experts, create evidence-based content you can trust.

European Board and College of Obstetrics and Gynaecology
United Nations Population Fund
Northwestern University
The University of Adelaide

We work with acclaimed health experts, institutions, and universities to provide our users with evidence-based information and groundbreaking research.

Your data. Protected.

You trust us with your intimate personal information and we promise to be 100% transparent with our data security and usage practices.

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“Empowering women through shared information”
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''If you don’t use the Flo app already you probably know someone else who does''
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“Flo is aiming to become more than just an app, with a hub covering all aspects of female health”