Which holiday recording software works well?

In my opinion, Meiyou menstrual assistant is the best software to record holidays. It is a practical software specially designed for women to predict menstrual period and care for their health, with accurate prediction and health analysis. Other good softwares include menstrual assistant, menstrual tracker and female safety period calculator, which provide functions such as physiological period prediction, ovulation date prediction, safety period calculation, etc., with beautiful interface and simple operation.