Lunavi: Offline Period Tracker

Lunavi is a 100% offline period tracker, ovulation calendar, and fertility tracker — a private period tracker app with no account, no ads, and no cloud.

Your health data is yours. Not a server's. Not an advertiser's. Yours. Every log, symptom, and cycle prediction is processed and stored strictly on your phone. Nothing transmitted. Nothing at risk.

No cloud. No account. No compromise.

🔒 100% OFFLINE & PRIVATE — ZERO DATA COLLECTION
Most period trackers treat privacy as an afterthought. Lunavi treats it as an architectural fact. There is no server to breach and no database to subpoena — no company can access your data, because it was never sent anywhere.

● 100% Offline: Cycle predictions, symptom logs, and insights are generated on-device. No internet required — ever.
● No Account Needed: Open the app and start tracking immediately. No email, no passwords, no sign-up.
● Advanced App Lock: Biometric and PIN security with an offline reset token and an emergency panic wipe to permanently clear data in one tap.
● Discreet Mode: Hide sensitive menstrual and fertility details from your screen when in public.
● Reminders & Quiet Hours: Period and ovulation alerts with custom mute schedules.
● Complete Data Portability: Export or import your local database anytime with zero third-party dependencies.

🌙 CYCLE TRACKER THAT LEARNS YOUR RHYTHM
Lunavi's on-device period tracker and menstrual calendar adapt to your unique biology over time without sending data off your device.

● 3 Tailored Modes: Standard Cycle Mode, TTC (Trying to Conceive) Mode, and Simple Mode for minimal logging.
● Personalized Predictions: Estimate your next period, fertile window, and ovulation day from your logged history — not a generic 28-day assumption.
● Menstrual Calendar View: Clear visual layout of cycle stages, fertile days, and expected periods at a glance.
● Irregular Cycle Support: Cycle tracking and recalibration built for variable, unpredictable patterns — predictions adapt to your logged history.
● Retroactive Logging: Add missed entries anytime without breaking predictive accuracy.

🌸 TRYING TO CONCEIVE (TTC) & FERTILITY TRACKER
Lunavi's offline fertility tracker and TTC app monitor conception indicators with total privacy and zero subscriptions. A fertility app that never leaves your phone.

● Fertile window identification with daily probability scoring.
● Basal Body Temperature (BBT) charting with cycle overlay graphs.
● Cervical mucus tracking with quality classification.
● Ovulation Predictor Kit (OPK) logging to monitor LH surge timing.
● Conception insights tailored to your specific phase.

📝 PERIOD & SYMPTOM LOGGING — FULLY CUSTOMIZABLE
Your body does not follow a template. Your period tracker shouldn't either.

● 40+ Symptoms & Vitals: Track flow intensity, cramps, mood, sleep, energy, skin, and digestion.
● Mood & Emotional Trends: Monitor recurring emotional shifts throughout your menstrual cycle.
● Modular Dashboard: Reorder, hide, or prioritize features to build your ideal tracking interface.
● Flexible Daily Entries: Log key health signals in seconds.

📊 MENSTRUAL CYCLE ANALYTICS & INSIGHTS
● Cycle Length Trends: Track cycle variations across months — ready to export for your doctor.
● Symptom Heatmaps: Uncover which symptoms repeat during specific cycle phases.
● Phase Guidance: Understand the follicular, ovulatory, luteal, and menstrual phases in plain language.

🎨 MODERN, INTUITIVE INTERFACE
● Clean frosted-glass aesthetic with fluid navigation — personal and discreet, never clinical.
● 5 Custom Themes: Luna Rose, Midnight, Forest, Ocean, and High Contrast with Day/Night support.
● 100% Ad-Free: No ads, no paywalled cycle history, and no pink stereotypes.

Download Lunavi — the free, private period tracker app and ovulation calendar built to keep your intimate health data where it belongs: with you.

Recent changes:
🗓 Calendar
• Future dates no longer show a cycle day that hasn't happened yet — thanks for the feedback!

💾 Backup & restore
• CSV backups now keep every field
• Restoring a backup refreshes your predictions right away
• Deleting a restored cycle now clears its days properly
• Fixed blank dates on some restored entries

📄 Doctor report
• Flow intensity now labelled correctly

Tell us what to build next: contact@abhilabs.app 💗