Flo is a women’s health brand best known for its mobile app, which helps people track periods, ovulation, pregnancy, perimenopause, and related symptoms. Users can log cycle information, identify symptom patterns, and receive predictions about when a period is likely to start. For those trying to conceive, the app offers fertility tracking and daily conception tips; during pregnancy, it provides week-by-week updates, milestone information, and checklists. Flo also offers partner-sharing features, Anonymous Mode, Secret Chats, a symptom checker, and a health library.

The brand supports its app with health articles, quizzes, calculators, and resources covering reproductive and general health topics. Flo says its medical content is reviewed by a team of doctors, scientists, and other medical experts. Its services include Flo Premium, support for clinicians, and the Pass It On Project, which aims to extend free, medically credible health information to underserved communities. Available on iOS and Android, Flo presents its work around helping people better understand their bodies and make informed decisions about their health.