دليلي is a free Android application developed by We Care Apps that helps women keep track of their menstrual cycle and ovulation period. The app is designed to provide information about the current and upcoming menstrual cycle, as well as calculate the probability of pregnancy for married women. The app aims to be a comprehensive guide for women's health by providing accurate and valuable information.

The app's user interface is straightforward, with easy-to-understand instructions. It allows users to enter their menstrual cycle's start and end dates, as well as the duration of their cycle. The app then calculates the expected date of the next period and ovulation period. The app also provides information about the probability of pregnancy for each day based on the user's input. Additionally, the app offers tips and advice on women's health and well-being.