My Lines calendario mestruale is a free Android application designed to assist users in monitoring their menstrual cycles with an engaging and informative approach. The app allows users to track their menstrual periods, calculate fertile days, and generate reports and statistics for personal use or gynecological appointments. Additionally, adult users can maintain a diary to record symptoms and activities related to their cycles.

Beyond basic tracking, My Lines offers valuable insights into various aspects of women's health, including gynecology, fertility, fitness, and emotional well-being. The app features a rewards system where users can earn discounts and participate in contests by entering unique codes found in Lines products. My Lines also includes a playful mascot named Cherry, which users can customize to reflect their feelings and phases of the menstrual cycle, making the experience both informative and enjoyable.