Luna - Period Tracker & Cycle

Contains adsIn-app purchases
Content rating
Everyone
1K+
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Content rating
Everyone
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About this app

Luna is a beautiful, private period tracker and ovulation calendar 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.

More than a period calendar, Luna is a complete cycle tracker: it predicts your next period, fertile window, and ovulation day, tracks PMS symptoms and mood, and works whether you're simply tracking your cycle or trying to conceive.

Instead of just counting days, Luna shows you which phase of your menstrual cycle you're in, what to expect, and how to make the most of each stage.

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.

EXPORT YOUR DATA
- CSV spreadsheet for personal analysis
- PDF cycle report for doctor visits
- Full backup and restore

PRIVACY FIRST
- Your cycle data stays on your device — never uploaded, never sold
- PIN & biometric lock
- No account, no sign-up, no cloud sync
- Health data is yours alone; ads are the only third-party content

Whether you want a simple period tracker, an ovulation and fertility calendar, a PMS and symptom diary, or a menstrual cycle predictor for trying to conceive, Luna keeps it all private and offline.

Your cycle. Your seasons. Your Luna.
Period & ovulation tracker, fertility & cycle calendar. Log flow, mood & PMS.
Updated on
Sep 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

What's new in 1.2.0:
- Luna starts faster, and every tab now remembers where you left off
- Smoother loading throughout — no more spinner flashes between screens
- Light mode polish, including sponsored cards that follow your theme
- Reminders now ask for notification permission when you switch one on