Private, Offline Period Tracker App
Menstrudel is a free, open-source, and completely offline period tracking app that puts your privacy first.
Why Menstrudel? Because Privacy Matters.
In an era where personal health data is a commodity, Menstrudel offers a secure sanctuary. All your cycle information, symptoms, and logs are stored only on your device. We can't see your data, and we don't want to.
- Absolutely Private: Your data never leaves your phone.
- Completely Offline: Works anywhere, anytime, without an internet connection.
- 100% Free & Open Source: Transparent, community-driven, and free forever.
Simple, Powerful Features
Effortless Logging
Quickly log your period, symptoms, and flow intensity with just a few taps.
Reliable Predictions
Get accurate estimates for your next cycle based on your personal history.
Intuitive Pill Regimen
Easily track your 21-day, 28-day, or custom pill pack with a single daily tap.
Smart Reminders
Set customisable alerts for your period, pill intake, or tampon changes.
Community Translations
The app is built to be translated. We rely on volunteers to help us add support for new languages.
Modern & Personal Design
Enjoy a clean interface with dark mode and theme colors that adapt to your phone.
See It In Action
Explore the clean, simple interface designed to make tracking your cycle effortless.
View Screenshots