Pirai - Period & Pregnancy

Pirai is a private, offline-first tracker for every phase of women's reproductive health — from a first period through trying to conceive, pregnancy, postpartum, and the menopause transition.

🔒 PRIVATE BY DESIGN
• No accounts, no servers, no analytics, no tracking
• No internet permission — the app is technically unable to send your data anywhere
• Everything is stored in an AES-256 encrypted database on your phone
• The encryption key lives in your phone's hardware-backed keystore
• Optional app lock with PIN and biometric unlock
• Screenshots and screen recording are blocked
• Discreet notifications — your lock screen says "Daily check-in", never anything cycle-specific
• Erase everything in one tap: every row, every key, gone

🌸 EVERY PHASE, ONE APP
• Period Tracker — flow, symptoms, mood, notes, BBT, cervical mucus, sleep, weight
• Plan for Baby — ovulation and fertile window, OPK and pregnancy-test reminders
• Pregnancy — week-by-week milestones, baby size, kick counter, birth plan, hospital bag checklist
• Postpartum — recovery timeline, baby log, breastfeeding support
• Peri-menopause — STRAW+10-aware range predictions, including after hysterectomy
• First Period (Teens) — a simpler home screen with age-appropriate, non-judgemental wording
• Hormonal contraception tracking

📊 INSIGHTS WORTH READING
• Adaptive predictions that learn from your own cycles, with a confidence rating
• Cycle length history, regularity score and flow trend
• Where your symptoms tend to fall in the cycle, and which ones recur most
• Mood and weight trends
• Phase-aware nutrition and movement coaching
• Clinical PDF report for any date range, ready to hand to your doctor

⏰ REMINDERS THAT ACTUALLY REACH YOU
• Medication reminders with a real full-screen alarm, course lengths and refill counts
• Appointments with advance reminders
• Daily check-in, predicted period, morning sun, evening wind-down

💾 YOUR DATA STAYS YOURS
• Passphrase-encrypted backup file you can save anywhere — you pick the folder
• Automatic background snapshots, so a lost phone isn't a lost history
• Restore, CSV export, and import from Clue
• Optional and off by default: let Android copy the encrypted backup to your own Google Drive

🩺 LEARN, WITHOUT THE SCARE TACTICS
• Hormone explainers — oestrogen, progesterone, FSH, LH
• Per-phase guidance, and red-flag symptoms worth a doctor's visit
• Conditions overview — PCOS, endometriosis, adenomyosis, fibroids, PMDD, thyroid
• Searchable A–Z medical glossary with sources cited
• Save any article to read later

🎯 NO TRICKS
• No ads
• No in-app purchases
• No subscription
• Works completely offline — on a plane, in a basement, on airplane mode forever

Pirai is built and maintained by an independent developer in Tamil Nadu, India. Privacy is the default here, not the upsell.

Pirai is for information and self-tracking only. It is not contraception, not a fertility treatment, and not a substitute for professional medical advice. Predictions are estimates based on the data you log. Always speak to a qualified clinician about symptoms or decisions concerning your health.