Lunavi: Period Tracker

Lunavi is a free period tracker, ovulation calendar and fertility tracker that keeps your health data private. Everything you log stays on your phone. No account, no sign-up, no cloud.

Whether you want to understand your cycle, predict your next period, find your fertile window while trying to conceive, or follow your pregnancy week by week, Lunavi gives you clear, honest insights. Every feature is free.

🌸 PERIOD TRACKER & CYCLE CALENDAR
• Log your period in one tap and see it on a clear monthly calendar
• Period predictions shown as a realistic date range, not a single guess
• Track flow (light, medium, heavy) and spotting
• Late period alerts and cycle history
• See your average cycle length and period length

🥚 OVULATION & FERTILITY TRACKER
• Estimated fertile window and ovulation day on your calendar
• Basal body temperature (BBT) chart in °C or °F, with coverline
• Ovulation confirmed when your temperature shows a sustained rise
• Log ovulation (LH) test results and pregnancy test results
• Track cervical mucus to spot your most fertile days
• Trying to conceive (TTC) mode with fertility tips

🤰 PREGNANCY TRACKER
• See how many weeks pregnant you are and your estimated due date
• Week-by-week pregnancy notes
• Track your weight during pregnancy
• Baby kick counter with saved sessions

📝 SYMPTOM & MOOD TRACKER
• Log cramps, headaches, bloating, acne, tender breasts, fatigue and more
• Track mood, sex, medication and notes
• Spot patterns with your most logged symptoms
• Gentle prompts if your cycles look unusually short, long or irregular

🔄 IRREGULAR PERIODS & PCOS
• Irregular-cycle setting gives wider, more honest prediction ranges
• Predictions improve the more cycles you log

⏰ REMINDERS
• Period coming reminder
• Fertile window reminder for TTC
• Daily pill reminder
• Discreet notifications that don't reveal details on your lock screen

🔒 PRIVATE BY DESIGN
• Your health data is stored only on your phone, in an encrypted database
• No account needed. Works offline
• We never sell your health data or use it for ads
• App lock with PIN, fingerprint or face unlock
• Hide app content from recent apps
• Export a backup or delete all your data at any time

📚 LEARN ABOUT YOUR BODY
Short, easy-to-read articles on cycle phases, the fertile window, ovulation tests, BBT charting, cervical mucus, PCOS, period pain, trying to conceive and early pregnancy.

💜 100% FREE
All features are free. Lunavi is supported by a small number of non-personalised ads, shown only in the Learn section and occasionally when the app opens, never on your calendar or health logs. You can turn ads off in Settings.

IMPORTANT
Lunavi is not a method of birth control. Do not rely on fertile-window or ovulation predictions to prevent pregnancy. Lunavi is for general wellness and information only and is not a substitute for advice from a qualified doctor. Predictions are estimates and may be inaccurate, especially with irregular cycles, PCOS, recent pregnancy, breastfeeding or hormonal contraception.

Questions or feedback? Email us at [email protected]