Private cycle tracking, with an assistant that has read your own history.
Fase reads a menstrual cycle from what its user actually logs — phase, ovulation, fertile window — and turns a month of scattered entries into something legible. It works without an account or an email address. A person’s history is held under a random device identifier, not their name.
We do not sell user data, we run no ad networks inside the app, and we do not use reproductive health data for advertising.
Fase is a wellness tool, not a medical device. Its predictions are estimates, are labeled as estimates, and are not a substitute for a healthcare provider.