Estri Period & Cycle Tracker

Estri Health

In-app purchases

About this app

Period Tracker, Ovulation & Fertility Calendar 🌸

Track your menstrual cycle with Estri — a private, AI-powered period tracker
and period calendar that predicts your next period, PMS, ovulation and fertile
days. Built for regular and irregular periods alike.

🩸 PERIOD TRACKER & PERIOD CALENDAR
• Accurate period predictions that adapt to your body, even with irregular cycles
• See menstruation, ovulation and fertile days on a clear, color-coded period calendar
• Log flow, cramps, moods, cravings, energy and sleep in your period diary
• Period reminders and PMS alerts, so you're never caught off guard

🌷 OVULATION TRACKER & FERTILITY CALCULATOR
• Predict your ovulation days and fertile window with precision
• Daily insights for your cycle phase — helpful if you're trying to conceive (TTC)
• Ovulation notifications at the right moment in your menstrual cycle
• Not planning a pregnancy? Understand your cycle phases with confidence

🤖 ESTRI — YOUR AI HEALTH COMPANION
Ask anything about your cycle, symptoms, moods or fertility. Estri's AI chat
knows your cycle day, remembers your patterns, and answers like a knowledgeable
best friend — anytime, judgment-free.
• Daily brief: hormones, mood, energy and body, personalized to your exact cycle day
• AI food scanner: snap a meal for instant, cycle-aware nutrition insights
• Cycle-synced meditations and gentle self-care nudges

🤰 PREGNANCY TRACKER & DUE DATE CALCULATOR
Expecting? Switch to pregnancy mode:
• Week-by-week pregnancy tracking with your baby's size and development
• Due date countdown, trimester timeline and pregnancy-safe nutrition tips

🫶 PARTNER CONNECT
Invite someone you trust to follow your cycle, symptoms and daily updates —
keep your support system close through every phase of the month.

🎁 Invite a friend and you both get 7 days of Premium free with your personal
referral code.

🔒 YOUR DATA STAYS YOURS
Your menstrual health is nobody's business but yours. Your data is protected,
never sold, and you can delete it anytime.

📄 DOCTOR-READY REPORTS
Export a clear PDF summary of your cycles and symptoms to share with your
gynecologist.

From your first period to pregnancy planning — Estri is the period tracker and
ovulation calendar that grows with you.

Note: Estri should not be used as contraception and does not replace
professional medical advice.

Ratings and reviews

OMG this app is the best ....ever since my first period,I was never really able to track my periods coz they were all over the place and not on the same date and after downloading this app...i finally don't have to worry about waking up with a crime scene ❤️❤️

without premium it's much more easier to track and people will easily get 5 stars if no have premium.

I have been using this application for a while now. It's been a useful tool to not only track my periods but also to keep my mood and other related aspects in check. It's easy to use as well. Though I think the logo could be changed.

What’s new

🤰 NEW: Pregnancy Mode! Track your journey week by week — baby size, development milestones, and a due-date countdown.
🥗 Nutrition guidance tailored to each trimester
🔔 Smarter notifications that adapt to your tracking mode
🌍 Pregnancy tracking now available in 11 languages
✨ Plus bug fixes and performance improvements