Updated Jan 22, 2026 · v1.0.5
Secure period & ovulation tracker. Private, encrypted, offline. No data sharing.
FREE Period Tracker & Fertility Calendar - Your Health Data Stays Private CycleFlow is a free menstrual cycle and ovulation tracker that puts your privacy first. Track periods, predict fertile days, monitor symptoms, and manage your reproductive health—all with complete data privacy and offline functionality. 🔒 TRUE PRIVACY - YOUR DATA NEVER LEAVES YOUR DEVICE Unlike other period tracking apps, CycleFlow guarantees complete privacy: • No Account Required - Start tracking immediately • Military-Grade Encryption - AES-256 protection • Zero Data Collection - No analytics or third-party access • Works Completely Offline - No internet needed • No Cloud Storage - Everything stays on your device • GDPR Compliant - European privacy standards Your menstrual health data belongs to you, not advertisers. 📱 COMPLETE PERIOD & FERTILITY TRACKING MENSTRUAL CYCLE TRACKING • One-tap period logging with flow intensity • Automatic cycle length calculation • Period history and calendar view • Cycle regularity analysis • Average period length tracking OVULATION & FERTILITY • Fertile window predictions • Ovulation day calculator • Conception probability tracking • Fertility calendar with visual indicators • Perfect for natural family planning SYMPTOM & MOOD TRACKING • Log physical symptoms (cramps, bloating, headaches) • Track emotional changes (mood, anxiety, energy) • Monitor intimate activity • Add custom symptoms with intensity levels • Historical symptom patterns SMART PREDICTIONS • AI-powered period predictions based on your history • Next period date forecasts • Confidence levels for predictions • Adapts to your unique cycle patterns • Medical accuracy following gynecological guidelines INSIGHTS & ANALYTICS • Cycle statistics and patterns • Average, shortest, and longest cycles • Total cycles tracked • Fertility trends and health insights 📊 DATA CONTROL & BACKUP • Full data export (JSON & CSV formats) • Easy import from backups • Transfer data between devices • One-click data deletion • Complete control over your information 🌍 AVAILABLE IN 33 LANGUAGES English, Croatian, Slovenian, Spanish, German, French, Portuguese, Italian, Polish, Russian, Ukrainian, Czech, Arabic, Hindi, Bengali, Chinese (Simplified & Traditional), Japanese, Korean, Indonesian, Malay, Thai, Vietnamese, Hebrew, Greek, Turkish, Persian, Romanian, Dutch, Swedish, Danish, Norwegian, Finnish. Automatic language detection with manual override option. ✨ WHY WOMEN CHOOSE CYCLEFLOW COMPLETELY FREE - No costs, paywalls, or subscriptions NO ADVERTISEMENTS - Clean interface without ads NO DATA SELLING - Your health data stays private MEDICALLY ACCURATE - Evidence-based predictions BEAUTIFUL DESIGN - Minimalist modern interface FAST & RELIABLE - Smooth on all devices REGULAR UPDATES - Always improving 💪 PERFECT FOR • Women concerned about health data privacy • Natural family planning and contraception tracking • Trying to conceive or pregnancy planning • Understanding your menstrual cycle patterns • Managing PMS and hormonal symptoms • Teenagers learning about their cycles • Anyone wanting a simple, honest period tracker 🩺 MEDICAL DISCLAIMER CycleFlow is for menstrual tracking and fertility awareness. NOT a contraceptive method or medical diagnostic tool. Consult healthcare professionals for medical advice. Predictions are estimates that may vary based on stress, diet, exercise, and hormonal changes. 🌊 DOWNLOAD CYCLEFLOW TODAY Join thousands of women who trust CycleFlow for private, accurate period and fertility tracking. Take control of your reproductive health without compromising your privacy. FREE • PRIVATE • ENCRYPTED • OFFLINE Track your natural flow without compromising your privacy. cycleflowapp.com
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