NEW: Conceive Mode — see your fertile window countdown, log ovulation tests, and know your best days to try. Plus Pregnancy Mode, AI cycle chat & partner sharing.
Estri is the private period tracker and ovulation calendar that actually understands your cycle. Get AI predictions for your period, ovulation and fertile window, a daily brief for your exact cycle day, and an AI companion you can ask anything. Your data is never sold.
NEW: CONCEIVE MODE
Trying to get pregnant? Estri counts down to your fertile window, highlights your best days to try, and lets you log ovulation (LH) tests and intercourse. When your period is late, it tells you the right day to take a pregnancy test.
PERIOD TRACKER & PERIOD CALENDAR
• Period predictions that learn your pattern, even with irregular cycles or PCOS
• Color-coded calendar for period, fertile days and ovulation
• Log flow, cramps, mood, cravings, energy, sleep and dozens of symptoms in seconds
• Period and PMS reminders so you're never caught off guard
OVULATION TRACKER & FERTILITY
• Fertile window and ovulation day predictions
• Basal body temperature (BBT) and cervical signs
• Discreet pill, patch and injection reminders if you're not trying to conceive
KNOW YOUR PHASE, EVERY DAY
The Daily Body Brief explains your current phase (menstrual, follicular, ovulation or luteal) and what it means for your mood, energy, skin and sleep.
ASK ESTRI, YOUR AI HEALTH COMPANION
Ask about your cycle, symptoms, hormones or fertility. Estri knows your cycle day and remembers your patterns, so answers are about you and not generic.
PREGNANCY TRACKER
Got a positive test? Switch to Pregnancy Mode for week-by-week baby size and milestones, a due date countdown, and trimester nutrition tips.
EAT WITH YOUR CYCLE
Snap a meal with the AI food scanner for cycle-aware nutrition insights. Get phase-matched meal ideas, craving support and water reminders.
BUILT FOR TWO: PARTNER SHARING
Share your cycle with your partner in real time. They get phase-based tips to support you through PMS, period days and fertile days, and you can send each other care notes.
BREATHE THROUGH THE HARD DAYS
Breathing exercises and meditations for cramps, PMS mood swings and better sleep.
DOCTOR-READY REPORTS
Export your cycle and symptom history as a clean PDF for your gynecologist in one tap.
PRIVATE BY DESIGN
We never sell your data or share it with advertisers. App Lock with Face ID keeps Estri for your eyes only, and you can delete your data anytime.
FOR EVERY STAGE OF LIFE
First period, trying to conceive, pregnancy, postpartum, perimenopause: Estri adapts as your body changes.
ESTRI PREMIUM
Some features need an optional auto-renewing Premium subscription. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel it in your App Store account settings.
Estri is not a medical device and should not be used as contraception. It does not diagnose, treat, cure or prevent any condition. Please consult a healthcare professional for medical concerns.
Privacy Policy: https://www.freeprivacypolicy.com/live/051b5b54-ddf3-48da-8b46-287c0c7c8eb0
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Very accurate, easy to use period tracker application. Best one I have used.
NEW: Conceive Mode
Trying to get pregnant? See a countdown to your fertile window, your best days to try, log ovulation (LH) tests and intercourse, and know exactly when to take a pregnancy test.
Also in this update:
• Smarter, cycle-aware nutrition reminders
• Faster, more reliable AI chat
• Smoother onboarding and subscription fixes
• Performance and stability improvements
Version 11.7.0
The developer, Aditya Agarwal, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Contact Info
Identifiers
Usage Data
Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Aditya Agarwal
Size
119.9 MB
Category
Health & Fitness
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
