Digital period and fertility tracking: how reliable are the predictions?

Samsung is adding menstruation cycle tracking to its Health application. — AFP Relaxnews

Samsung is joining Apple and Fitbit in offering menstrual cycle tracking in their dedicated Health application, according to a report by Sam Mobile. How useful could such an addition be to people with periods? It depends on what you're using it to predict.

Like other major smartphone manufacturers, Samsung has decided to add a menstrual cycle calendar to its native Health app to help those with periods track a major component of their well-being.