Hana - Period Calendar

Hana is a simple, beautiful period calendar designed just for you. [Key Features] - View your period, ovulation, and fertile window at a glance on the monthly calendar - Automatically sync data from Apple Health app - Personalized ovulation & fertile window prediction (weighted by recent cycles) - Log your daily condition with notes (up to 300 chars) and color icons - Visualize cycle trends with statistics and graphs - Search through your diary entries - Export & restore data with JSON backup - Push notifications 3 days and 1 day before your expected period - Switch between Korean and English [Your Privacy First] All data is stored only on your iPhone. Nothing is sent to any server or shared externally. [Apple Health Integration] Hana reads menstrual data from Apple Health to automatically calculate your cycle. Data entered in Hana is not written back to Apple Health.