Period Calendar & Cycle

Track your period and know your body's rhythm — private, accurate, and always on your device. No account, no ads, no cloud. Built on guidance from ACOG, Mayo Clinic, and the NHS, the app turns your daily logs into clear predictions for your next period, fertile window, and ovulation day. KEY FEATURES • Log flow, symptoms, mood, and temperature in seconds • See your next period, fertile window, and ovulation forecast • Track cycle regularity and length history over time • Spot symptom patterns tied to each phase of your cycle • Gentle reminders before your period arrives • Everything stored on your device — nothing leaves your phone HOW IT WORKS 1. Log your last period and average cycle length 2. Add daily notes — flow, mood, symptoms, temperature 3. Get predictions and insights that improve the more you log Full access — including insights, charts, and reminders — is available through a subscription, with weekly, yearly, and lifetime options. Track with confidence, understand your body, and keep every detail private. Terms of Use: https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Support: tphuc.work@gmail.com The app is not a medical device and does not provide medical advice or diagnosis. Predictions are statistical estimates and should not be used as a method of contraception.