# Estri Period & Cycle Tracker — Ovulation, Fertility & PCOD > Accurate period, ovulation, and fertility tracker with AI-powered predictions. (iPhone/iPad app by Aditya Agarwal.) - Source: https://appshunter.io/ios/app/estri-period-and-cycle-tracker/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: American English - Released: 2025-01-24 - Data updated: 2026-08-22 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/estri-period-and-cycle-tracker/id6739126294/reviews.md ## What is Estri Period & Cycle Tracker? Estri is the private period tracker that actually understands your cycle — accurate AI predictions for your period, ovulation, and fertile window, daily insights for every cycle phase, and nothing about you ever sold to anyone. PRIVATE BY DESIGN Your cycle is personal. Estri keeps it that way: we never sell your data or share it with advertisers, App Lock keeps the app for your eyes only, and your backup lives in your own account. Track honestly, without worrying who's watching. KNOW YOUR PHASE, EVERY DAY Most apps tell you when your period is coming. Estri tells you what's happening in your body today. The Daily Body Brief explains your current cycle phase — menstrual, follicular, ovulation, or luteal — and what it means for your mood, energy, skin, and sleep. Finally understand why some weeks feel unstoppable and others need rest. ACCURATE PREDICTIONS, EVEN WITH IRREGULAR CYCLES Estri's AI learns your unique pattern month after month. Regular or irregular, your predictions for periods, ovulation, and fertile days keep getting sharper. Log flow, cramps, mood, cravings, and dozens of symptoms in seconds. TRYING TO CONCEIVE — OR NOT Planning a pregnancy? Estri pinpoints your fertile window, tracks basal body temperature (BBT) and cervical signs, and shows daily conception chances. Practicing natural family planning or on birth control? Discreet pill, patch, and injection reminders keep you on schedule. And when you get that positive test, Pregnancy Mode continues the journey with you. EAT WITH YOUR CYCLE Cycle syncing, made practical: smart meal suggestions matched to each phase of your cycle, support for cravings, and gentle nutrition guidance that works with your hormones instead of against them. SHARE THE JOURNEY WITH YOUR PARTNER Estri is one of the few period trackers built for two. Share your cycle in real time; your partner receives phase-based tips to understand and support you through PMS, period days, and fertile days — plus custom care notes to send each other. Less guessing, more support. BREATHE THROUGH THE HARD DAYS Somatic breathing and meditation sessions help you relax through cramps and heavy days. Box breathing steadies PMS mood swings and anxious moments. Soundscapes help you unwind and sleep. YOUR HEALTH, ORGANIZED • Doctor Report: export your cycle history as a clean PDF for your gynecologist in one tap. • Water reminder, weight and sleep tracking, clear health charts. • Ask Estri, your AI health assistant, anything about your cycle, symptoms, or hormones. FOR EVERY STAGE OF LIFE From a teen's first period, through trying to conceive, postpartum, perimenopause, and menopause — Estri adapts to your body's story. Estri is not a medical device and does not diagnose, treat, cure, or prevent any condition. Insights are informational — please consult a healthcare professional for medical concerns. Download Estri and meet the period tracker that respects your privacy, explains your body, and keeps your people close. Your cycle, your data, your rules. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## 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 | ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/estri-period-and-cycle-tracker/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 Period & Cycle Tracker ### 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) ### 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! ### 9.2 — 2026-07-22 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! ### 8.9 — 2026-07-18 • Smaller app size and quicker launch • Faster, sharper AI chat and Smart Meals suggestions • Improved security to keep your data safe ## Apps similar to Estri Period & Cycle Tracker | App | Rating | Price | Category | | --- | --- | --- | --- | | [Femometer Fertility Tracker](https://appshunter.io/ios/app/femometer-fertility-tracker/id1269972832) | 4.9 (70,208) | Free | Health & Fitness | | [Period Tracker - Calendar](https://appshunter.io/ios/app/period-tracker-calendar/id6547871794) | — | Free | Health & Fitness | | [Premom-Ovulation Tracker, PCOS](https://appshunter.io/ios/app/premom-ovulation-tracker-pcos/id1279295922) | 4.8 (58,604) | Free | Health & Fitness | | [AI Period Tracker & Calendar](https://appshunter.io/ios/app/ai-period-tracker-and-calendar/id6738165518) | 4.6 (52) | Free | Health & Fitness | | [Period Tracker Menstrual Cycle](https://appshunter.io/ios/app/period-tracker-menstrual-cycle/id6480318237) | 5.0 (11) | Free | Health & Fitness | | [Chondo Women's Health Tracker](https://appshunter.io/ios/app/chondo-womens-health-tracker/id6446078777) | 5.0 (2) | 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 2026-08-22.*