Luna Cycle Tracker

Luna Cycle Tracker is a focused, private way to record your menstrual cycle and stay prepared. With Luna you can: • Record period start and end dates in a simple calendar • See estimated cycle phases and your next period date based on your history • Receive optional reminders for estimated fertile-window, ovulation, luteal-phase, and next-period timing • See your recent cycle history at a glance • Sync the period records you choose to Apple Health • Use Luna in English or Simplified Chinese • Request account deletion directly in the app Privacy is built into Luna. Period dates are encrypted on your device before they are sent to the Luna server. Apple Health sync is optional and write-only: Luna does not read data from Apple Health or upload Apple Health data to the Luna server. Cycle phases and dates shown by Luna are estimates based on the period history you record. Luna is intended for personal cycle awareness and is not a medical device. It does not provide diagnosis, treatment, contraception, or medical advice.