Track your menstrual cycle with Clue, the #1 doctor-recommended free period tracker app built in collaboration with top health researchers.

Clue is a period tracking app, a trusted menstrual health resource, and a thought leader in femtech.

Haz seguimiento de tu ciclo menstrual con Clue, la aplicación #1 de seguimiento del periodo grátis recomendada por doctores, construida junto a los mejores investigadores de salud.

The only resource for fact-checked information about the menstrual cycle, reproductive and sexual health, women’s health, trans health, and more.

Monitore seu ciclo menstrual com Clue, o #1 app de calendário menstruação grátis recomendado por médicos, feito em colaboração com pesquisadores de ponta.

Tracke deinen Menstruationszyklus mit Clue, der kostenlosen Periodentracker-App, die von Ärzten empfohlen und gemeinsam mit renommierten Wissenschaftlern entwickelt wird.

Sign in to your Clue account Plan ahead easily with 12 upcoming cycle predictions Unlock all science-based articles and get tips from medical experts Identify your cycle patterns with …

Clue is a menstrual tracking app, an encyclopedia, a resource for your health, and more. Here are all the posts about us: our app, our mission, our events, and everything else.

New to Clue? Your questions, answered. Read about: How Clue handles data privacy What predictions are available in Clue Different Clue modes Using Clue for free Premium features …

May 21, 2025 · When you track in Clue, you contribute to an unprecedented data set used by top institutions and clinicians in research, forwarding the understanding of menstrual health in a …