Menstrudel | Private & Offline Period Tracker
Menstrudel: A Private, Offline Period Tracker App
A free, open-source, and completely offline period tracking app that puts your privacy first.
Get The App
About This Privacy-First Period Tracker
Menstrudel is a simple, private, and intuitive mobile application built with Flutter to help you track your menstrual cycle. In an era where data privacy is critical, especially for health data, Menstrudel offers a secure alternative. All your personal health data is stored securely offline on your device. No cloud, no sign-ups, no-nonsense.
Log your period start dates, record symptoms, and get predictions for your next cycle, all without an internet connection.
Why Choose Menstrudel?
- Absolutely Private: All data stays on your device. We can’t see it, and we don’t want to.
- Completely Offline: Works anywhere, anytime, without needing an internet connection.
- 100% Free & Open Source: No ads, no subscriptions. The code is transparent and open for community review.
Key Features for Your Menstrual Health
- Effortless Period Logging:
- Quickly log your period start date.
- Record symptoms and flow intensity.
- Reliable Cycle Prediction:
- Estimates your next period start date based on your history.
- Calculates your average cycle length for reliable predictions.
- Clearly displays a countdown to your next period.
- Intuiative Pill Regimen:
- Easily configure your specific pill pack, whether it’s 21-day, 28-day, or custom.
- Log your daily intake with a single tap.
- Customisable Notifications:
- Period Reminders: Get an alert a few days before your period is due.
- Tampon Reminders: Set a reminder to change your tampon for your safety.
- Pill Reminders: Get an alert when its time to take your pill.
- Secure Local Storage: Your sensitive health data is stored offline on your device using SQLite.
- Adaptive Theme: Supports both Light and Dark modes.
You can view our full privacy policy here.
App Screenshots
| Your Daily Logs | Quick Symptom Entry | Tampon Reminder |
|---|---|---|
 |
 |
 |
| Pill Reminder | Quick Insights | App Settings |
 |
 |
 |