Clue

Clue is the #1 women-led period and cycle tracker, loved by over 100 million women and people with cycles around the world.

Available in 23 languages and over 190 countries, Clue helps members turn their cycle into a powerful tool to discover patterns, stay on top of changes, and make informed health decisions.

With one of the largest datasets of longitudinal menstrual health information globally, Clue regularly partners with leading research institutions to advance understanding in women’s health and close longstanding data gaps. Clue is committed to empowering people with accurate health information while setting the standard for data privacy, security, and user trust.