period: basic tracker

period: basic tracker is a completely private, offline period tracking app
with no tracking and no servers accessing your data.

📱 Features:
✓ Track your period, fertile window, and ovulation dates
✓ Get predictions for your next period (after 2 cycles)
✓ Beautiful calendar view with color-coded cycle phases
✓ Cycle length and bleeding duration statistics
✓ Trend charts showing your cycle patterns
✓ Export your data as JSON for backup
✓ Import data from backup
✓ Scheduled email reminders (optional)
✓ Home screen widget (Android)
✓ Dark mode support
✓ 7 languages: German, English, Spanish, French, Russian, Ukrainian, Arabic

🔒 Privacy First:
- All your data stays on your device
- No internet connection required
- No account, login, or registration
- We don't see, store, or have access to your data
- Open for security audits
- GPLv3 licensed

💻 Technical:
- Built with React Native and Expo
- Uses local storage only
- No third-party analytics or tracking
- No cloud synchronization
- Works offline completely

Perfect for anyone who wants complete control and privacy for their health data.