Clay: Period Ovulation Tracker

Clay — Period Tracker & Cycle Predictor The smartest period tracker that learns your unique cycle. Clay uses a machine learning algorithm to predict your next period date, track ovulation, and provide personalized health tips based on your cycle phase. ★ ACCURATE PERIOD PREDICTIONS Clay doesn't assume a fixed 28-day cycle. Our adaptive algorithm analyzes your cycle history and lifestyle factors to deliver predictions that get more accurate every month. Track your prediction success rate right in the app. ★ OVULATION & FERTILE WINDOW TRACKER Know exactly when you're ovulating. Clay calculates your fertile window and ovulation date based on your personal cycle data — not generic averages. ★ LIFESTYLE-AWARE CYCLE TRACKING Your period is affected by your daily life. Clay factors in: • Stress levels • Sleep duration & regularity • Work hours & shift patterns • Exercise & hydration • Caffeine intake • Travel & jet lag See exactly which factors are delaying or advancing your period with the built-in impact breakdown. ★ CYCLE PHASE HEALTH TIPS Get daily health tips tailored to your current phase — menstrual, follicular, ovulation, or luteal. Know what to eat, how to exercise, and how to feel your best throughout your cycle. ★ BEAUTIFUL CYCLE GRAPH Visualize your cycle trends over 3, 6, or 12 months. Compare actual dates against moving average and predicted dates on an interactive scrollable chart. ★ 100% PRIVATE — NO ACCOUNT NEEDED All data stays on your device. No sign-up, no cloud sync, no data collection. Your menstrual health data is never shared with anyone. ★ QUICK SETUP Answer 3 simple questions and start tracking immediately. No lengthy onboarding or complicated setup. PERFECT FOR: • Women tracking irregular periods • Anyone with PCOS, endometriosis, or thyroid conditions • Cycle-aware fitness and nutrition planning • Ovulation awareness and fertile window tracking • Understanding how lifestyle affects your menstrual cycle Clay is not a medical device and does not provide medical advice. Predictions are estimates based on your personal data and should not be used as contraception. Download Clay — the period tracker that actually learns your body.