Luna is a beautiful, private period and cycle tracker that maps your menstrual cycle to the four seasons — Winter, Spring, Summer, and Autumn — so you can understand your body's natural rhythm at a glance. Instead of just counting days, Luna shows you which phase you're in, what to expect, and how to make the most of each stage of your cycle. FOUR-SEASON CYCLE PHASES Your cycle is more than just a period. Luna divides it into four distinct phases, each with its own energy, nutrition tips, and exercise guidance: - Winter (Menstruation) — Rest and restore. Your body is shedding and renewing. - Spring (Follicular) — Rising energy. A great time to start new projects and try new things. - Summer (Ovulation) — Peak energy and confidence. You're at your most social and creative. - Autumn (Luteal) — Winding down. Focus on completing tasks and preparing for rest. DAILY LOGGING Track what matters to you, all in one place: - Flow level (Heavy, Medium, Light, Spotting) - Mood (Happy, Calm, Energetic, Anxious, Sad, Irritable) - Symptoms (Cramps, Bloating, Headache, Fatigue, and more) - Basal body temperature (BBT) for fertility awareness - Weight and sleep tracking - Personal notes BEAUTIFUL CALENDAR See your entire cycle at a glance with color-coded phase markers. Tap any day to view or edit your log. Flow indicators and mood dots make patterns easy to spot. INSIGHTS & TRENDS Understand your body better with: - Cycle history with average lengths - Top symptoms frequency - Mood distribution - BBT temperature trend chart - Logging activity stats SMART REMINDERS Never be caught off guard: - Period reminder (configurable days before) - Daily log reminder at your chosen time - Pill reminder - Ovulation reminder TRYING TO CONCEIVE Enable TTC mode to see fertile window markers on your calendar, track basal body temperature, log intimacy, and get ovulation reminders. PRIVACY FIRST - 100% offline — your data stays on your device - PIN & biometric lock - No account required - No data collection EXPORT YOUR DATA - CSV spreadsheet for personal analysis - PDF cycle report for doctor visits - Full backup and restore Your cycle. Your seasons. Your Luna.