Dayima mobile app being marketed as monthly cycle help for women

Even though most Chinese women are still too shy to talk about their menstrual cycles, a mobile application is doing just that.

Dayima, the Chinese term for a woman's period, is a mobile application for women's menstrual health. Its functions include keeping records of a woman's cycle, forecasting it, administering a self-test for premenstrual syndrome and advice.

Its founder is a 27-year-old man. Chai Ke chose the category on the advice of his parents, who are both medical professionals, and his fiancee, whose symptoms he observed during sensitive days.