Periodic - Menstrual Cycle Tracker
🩸 Track Your Cycle
Easily record your period start and end dates. Add notes and edit past records. Your cycle length and period duration are calculated automatically.
📊 Smart Predictions
Predicts your next period start from just 2 records. Confidence percentage increases as you add more data. With 7+ records, the Hidden Markov Model (HMM) algorithm kicks in, learning your regular and irregular cycle patterns.
📅 Analysis and Calendar
Check the likelihood of your period for future dates. View your predictions in list or calendar format. Get average cycle length, period duration, and regularity analysis.
🔔 Notifications
Get reminder notifications 3 days before your predicted period start. Late period reminders are also sent.
🌍 Multi-Language Support
Available in 6 languages: Türkçe, English, Français, Deutsch, Español, العربية
🔒 Privacy-Focused
- ✅ All data stored locally on your device
- ✅ NO cloud sync
- ✅ NO third-party sharing
- ✅ Export/import your data
💎 Completely Free and Ad-Free
Periodic is completely free. No ads, no in-app purchases, no hidden fees. All features are available to everyone.
📱 Features
- Simple and elegant interface
- Data export/import (JSON)
- Statistics and analysis
- Confidence-scored prediction system
- Transparent privacy policy
⚠️ Important Disclaimer
This app is for informational purposes only and does not replace medical advice. Please consult a healthcare professional for any health concerns.