# Estri: Period Tracker & Cycle — Ovulation Calendar & Pregnancy > Accurate period, ovulation, and fertility tracker with AI-powered predictions. (iPhone/iPad app by Aditya Agarwal.) - Source: https://appshunter.io/ios/app/estri-period-tracker-and-cycle/id6739126294 (this page in markdown: same URL + `.md`) - Developer: [Aditya Agarwal](https://appshunter.io/developer/1783729351) - Category: Health & Fitness, Lifestyle - Price: Free with in-app purchases - Rating: 4.50/5 from 2 App Store ratings · 4 written reviews indexed - Age rating: 12+ - Requires: iOS 15.0 · 114 MB - Languages: English - Released: 2025-01-24 - Data updated: 2026-10-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/estri-period-tracker-and-cycle/id6739126294/reviews.md ## What is Estri? Period tracker, ovulation calendar, fertility and pregnancy tracker with AI cycle insights in one private app. Estri predicts your next period, PMS and fertile window, explains what your body is doing today, and answers your cycle questions in seconds. No ads. Your data is never sold. NEW: CONCEIVE MODE Trying to get pregnant? See your chance of conceiving today, a countdown to your fertile window and your most fertile days. Log ovulation (LH) tests, see key dates at a glance, and know the right day to take a pregnancy test. PERIOD TRACKER & PERIOD CALENDAR • Period predictions that learn your pattern, even with irregular periods or PCOS • Color-coded period calendar for period days, fertile days and ovulation day • Period diary: log flow, cramps, mood, cravings, energy, sleep and 40+ symptoms in seconds • Period reminders, PMS alerts and late-period notifications • Cycle length, period length, regularity score and cycle length trend OVULATION TRACKER & FERTILITY CALENDAR • 6-day fertile window and ovulation day predictions • Basal body temperature (BBT) and cervical signs • Daily fertility insights for trying to conceive (TTC) • Discreet pill, patch and injection reminders if you're not trying to conceive DAILY BODY BRIEF: KNOW YOUR PHASE Every morning Estri explains your phase (menstrual, follicular, ovulation or luteal), hormones, mood, energy and what to expect today, tuned to your exact cycle day. ASK ESTRI, YOUR AI HEALTH COMPANION Ask about late periods, cramps, spotting, mood swings, hormones or fertility and get a cycle-aware answer in seconds, judgment-free, 24/7. Estri knows your cycle day and remembers your patterns, so answers are about you, not generic. PREGNANCY TRACKER & DUE DATE CALCULATOR Positive test? Switch to Pregnancy Mode in one tap for week-by-week baby size, length and weight, a due date countdown, trimester timeline and pregnancy-safe nutrition. CYCLE-SYNCED NUTRITION & MEAL SCANNER • Smart Meals: phase-matched foods and meal ideas for cramps, cravings and energy • AI food scanner and barcode scanner: snap a meal for instant cycle-aware nutrition insights HYDRATION TRACKER Water goal, one-tap water log, cycle-aware water reminders and a hydration report. MEDITATION & BREATHING Guided breathing and meditations for cramp relief, PMS stress, anxiety, focus and better sleep, matched to your cycle phase. CYCLE REPORTS & DOCTOR-READY PDF AI cycle reports after every finished cycle, personalized trends, and a Medical Health Report you can export as a clean PDF for your gynecologist in one tap. PARTNER CONNECT Share your cycle with your partner in real time. They see your phase and daily updates with tips to support you through PMS, period and fertile days, and you can send each other care notes. PRIVATE BY DESIGN No ads. We never sell your data or share it with advertisers. App Lock with Face ID, Touch ID or PIN keeps Estri for your eyes only. Guest mode, Apple or Google sign-in to sync across devices, delete anytime. MORE • Dark theme and light theme • 11 languages: English, Hindi, Spanish, Portuguese, French, German, Russian, Ukrainian, Japanese, Arabic and Persian • Refer a friend and you both get 7 days of Premium free FOR EVERY STAGE OF LIFE First period, teens, irregular cycles, PCOS, trying to conceive, pregnancy, postpartum and 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://periodstracker.com/privacy Terms of Use: https://periodstracker.com/terms ## Key features - Cycle and period tracking - Ovulation and fertility window prediction - Pregnancy planning mode - AI-powered cycle forecasts - PMS symptom and mood logging - Personalized health insights ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Estri Pro - Yearly | $39.99 | per year | | Estri Pro - Monthly | $6.99 | per month | ## Is Estri safe? Not enough ratings yet to assess Estri. ## Is Estri legit? Estri: Period Tracker & Cycle appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Estri is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/estri-period-tracker-and-cycle/id6739126294/reviews.md ### 5/5 — Simple and easy *2025-06-30, version 2.0* Best thing i felt using this app is it’s simplicity and easy to use ### 5/5 — Easy to use *2025-06-19, version 1.9* Simple and easy to use application ### 5/5 — Sonal *2025-06-11* Very accurate, easy to use period tracker application. Best one I have used. ### 5/5 — Nice! *2025-06-11, version 1.8* Just everything you want and need in a period tracker! Nothing extra, absolutely no ads, options for tons of symptoms and to add your own symptoms if they don't have them, reminds you of when it's most likely to come and even gives you an estimate based on your past cycles of your average cycle length and your fertile window. ## Frequently asked questions about Estri ### How accurate is Estri Cycle & Period Tracker? The app uses AI-powered predictions to learn your unique cycle patterns for accurate forecasting of periods, ovulation, and fertility weeks in advance. Users can expect timely reminders for ovulation, PMS, and upcoming periods. ### Can Estri Cycle & Period Tracker help with pregnancy planning? Yes, you can activate pregnancy mode to track ovulation cycles, fertile days, and conception possibilities. This feature helps you gain a better understanding of your hormonal health and reproductive patterns for planning. ### What kind of data can I log in Estri Cycle & Period Tracker? You can easily log your periods, flow intensity, PMS symptoms, moods, cravings, cervical mucus, and sexual activity. This provides a clear overview of your menstrual calendar and helps you stay prepared. ### Is Estri Cycle & Period Tracker available on all devices? Estri Cycle & Period Tracker is supported on iPhone and iPad devices. It is designed to help users manage their reproductive health across Apple's mobile platforms. ### How often is Estri Cycle & Period Tracker updated? The latest version of Estri Cycle & Period Tracker is 3.4, and it was last updated on January 13, 2026. This indicates a recent update, suggesting ongoing development and support. ### What is the age rating for Estri Cycle & Period Tracker? Estri Cycle & Period Tracker has an age rating of 12+. This means it is considered appropriate for users aged 12 and older. ### Does Estri Cycle & Period Tracker have ads? No, Estri Cycle & Period Tracker does not contain advertisements. Users can enjoy a seamless experience without interruptions from ads. ### What are the benefits of using Estri Cycle & Period Tracker? Users choose this app for its accurate and reliable period tracking, smart menstrual calendar, ovulation and fertility forecasts, support for pregnancy tracking and birth control, and personalized insights to improve women’s health. ## Version history (last 5 releases) ### 11.8.0 — 2026-10-23 • NEW Conceive Mode: your chance of conceiving today, fertile-window countdown, ovulation (LH) test log and pregnancy-test timing • Estri now speaks 11 languages: English, Hindi, Spanish, Portuguese, French, German, Russian, Ukrainian, Japanese, Arabic and Persian • Clearer partner invite messages • Bug fixes and performance improvements ### 11.7.0 — 2026-10-07 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 ### 10.0.6 — 2026-08-11 NEW: Pregnancy Mode! Track your pregnancy week by week with baby size comparisons, key development milestones, and a personalized due-date countdown. Also in this update: - Nutrition guidance tailored to each trimester - Smarter notifications that adapt to your tracking mode - Pregnancy tracking now available in 11 languages - Bug fixes and performance improvements Enjoying the app? A quick review helps other users find us! ### 10.0.1 — 2026-08-05 Now in 5 new languages: Arabic, Persian, Hindi, Japanese & Ukrainian — Estri is available in 11 languages in total. Plus: bug fixes and performance improvements for smoother, faster tracking. ### 9.6 — 2026-07-27 Introducing Nutrition For You Your cycle and your nutrition are deeply connected — and now Estri helps you nourish both. • Scan your meals and get instant, AI-powered nutrition insights • Track your AI Nutrition Score and watch your week take shape • Get meal plans, recipes, and grocery lists tailored to each cycle phase • Let Estri spot patterns in your nutrition over time Nutrition For You is available with Premium — we'd love for you to try it. This update also includes performance improvements and bug fixes. Thank you for using Estri — your feedback helps us grow! ## Apps similar to Estri | App | Rating | Price | Category | | --- | --- | --- | --- | | [Rosie - Period Tracker](https://appshunter.io/ios/app/rosie-period-tracker/id6756547902) | 5.0 (1) | Free | Health & Fitness | | [Period tracker - pregnancy app](https://appshunter.io/ios/app/period-tracker-pregnancy-app/id6748580764) | — | Free | Health & Fitness | | [Cycle Tracker & Girls Club](https://appshunter.io/ios/app/cycle-tracker-and-girls-club/id6499095441) | 4.5 (2) | Free | Health & Fitness | | [Period Tracker - Calendar](https://appshunter.io/ios/app/period-tracker-calendar/id6547871794) | — | Free | Health & Fitness | | [Daisy Cycle & Period Tracker](https://appshunter.io/ios/app/daisy-cycle-and-period-tracker/id6741432294) | 5.0 (6) | Free | Health & Fitness | | [Pulse Periods Tracker](https://appshunter.io/ios/app/pulse-periods-tracker/id6738274657) | — | Free | Health & Fitness | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*