Period Tracker - Ruby

Ruby is a simple, smart, and privacy-focused period tracker for logging menstrual cycles, flow, symptoms, emotions, energy, stress, and personal notes. Its cycle calendar helps predict upcoming periods, ovulation, and fertile windows based on your tracking history.

Designed for teens, fertility tracking, pregnancy planning, and perimenopause, Ruby provides gentle reminders and personalized insights to help you understand cycle patterns, manage PMS, and stay informed about your body. The app is free for users who join before September 15, 2025.