CycleFlow: Period & Ovulation

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Everyone
100+
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Content rating
Everyone
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About this app

CycleFlow is a private period tracker and ovulation calendar that keeps your cycle data on your phone – not in the cloud, not on our servers, not with advertisers.

No account. No sign-up. No ads. No tracking. Just open the app and start logging.

🔒 PRIVATE BY DESIGN
• Your data is stored only on your device, in an encrypted database (AES-256)
• No account, email or phone number needed
• No analytics, no advertising SDKs, no data sharing
• Works fully offline – no internet connection needed
• Uninstalling the app removes your data – nothing is left on any server

📅 PERIOD & OVULATION CALENDAR
• Log your period in one tap and choose the flow intensity
• See period days, fertile window and estimated ovulation day in a clear monthly calendar
• Next period prediction shown right in the calendar
• Add past periods to get better predictions from day one

📈 PREDICTIONS THAT LEARN YOUR CYCLE
• Predictions are based on your own cycle history, and get more accurate as you log more cycles
• Average cycle length and period length
• Shortest and longest cycle, total cycles tracked
• Cycle regularity – helpful if you have irregular periods
• Prediction confidence, so you know how reliable an estimate is

🩺 SYMPTOM & MOOD TRACKER
• Track cramps, headaches, bloating, fatigue and breast tenderness
• Log your mood: happy, neutral, sad or angry
• Rate intensity and add your own notes
• Add custom symptoms
• Review your symptom history over time

💾 YOU OWN YOUR DATA
• Export your data to JSON or CSV
• Import your backup on a new phone
• Move to another device without creating an account

🌍 33 LANGUAGES
English, Croatian, Slovenian, Spanish, German, French, Portuguese, Italian, Dutch, Swedish, Norwegian, Danish, Finnish, Polish, Czech, Romanian, Greek, Turkish, Russian, Ukrainian, Arabic, Hebrew, Persian, Hindi, Bengali, Japanese, Korean, Chinese (Simplified and Traditional), Thai, Vietnamese, Indonesian and Malay.

✨ SIMPLE AND CALM
A clean, modern design with a soft glass look – no clutter, no pop-ups, no upsells.

WHO IS CYCLEFLOW FOR?
• Anyone who wants a period tracker without giving away personal health data
• Tracking your menstrual cycle, PMS and symptoms
• Understanding your fertile window and ovulation
• Keeping an eye on irregular cycles to discuss with your doctor

IMPORTANT
CycleFlow is a cycle tracking and fertility awareness tool. It is not a method of contraception and is not a medical device. Predictions are estimates and can be affected by stress, illness, medication and other factors. Always consult a healthcare professional for medical advice.

Privacy policy: https://pixelforge-apps.com/app/cycleflow/privacy-policy
Website: https://pixelforge-apps.com/app/cycleflow
Private period tracker & ovulation calendar. Offline, no account, no ads.
Updated on
Oct 15, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

- New app icon and refreshed splash screen
- Landscape and tablet support with a side navigation rail and two-column layouts
- Calendar now shows your next period, fertile window and ovulation at a glance on larger screens
- Ovulation label in the calendar no longer gets cut off
- Improved display on Android 15 and newer