Menstrudel Period Tracker

100+
Downloads
Content rating
Everyone
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About this app

Menstrudel: The Private, Open Source, Offline Period Tracker & Cycle Calendar

Menstrudel is the simple, powerful, and private period tracker designed to give you complete control and true ownership over your health data. Unlike cloud-based solutions, Menstrudel protects your privacy and security.

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THE 100% OFFLINE DIFFERENCE: YOUR DATA, YOUR CONTROL
We prioritise your privacy above all else. When searching for a trusted period tracker or menstrual app, privacy is key.

- 100% Offline Storage: All your sensitive menstrual cycle data, symptoms, and logging information is stored securely and completely offline on your device.

- No Servers, No Cloud: Your data is never sent to any external server or third party. There are no accounts and no tracking.

- Biometric Security: Protect your private health information with immediate biometric access controls.

If you are looking for a completely offline period tracker solution, Menstrudel is the choice for data ownership.

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OPEN SOURCE & TRANSPARENCY
Trust requires transparency. Menstrudel is an open source project, meaning the code is publicly available for anyone to audit and review.

- Auditable Code: Our commitment to open source ensures you know exactly how your data is handled. We are built on community trust, not corporate data collection.

- Community Focused: Help us improve your favorite offline period calendar by contributing to the project.

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CYCLE & SYMPTOM TRACKING
Menstrudel is an intuitive and reliable period and pill tracker. It is designed for easy, on-the-go logging and detailed cycle analysis.

- Log Everything: Track your menstrual cycle, pill intake, custom symptoms, pain, and flow with simple taps.

- Period Prediction: Get reliable predictions for your next period and upcoming cycle dates with our smart period calendar function.

- Reminders: Never miss a step with support for upcoming period reminders, late period alerts, and daily pill reminders built right in.

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LARC TRACKING & REMINDERS
Menstrudel allows users to track their Long-Acting Reversible Contraception usage.

- Simple Logging of Administration: Easily record the exact date your LARC was administered. This creates an accurate timeline of your birth control usage.

- Flexible Expiration Dates: Users can easily adjust the calculated expiration date to match their doctor's advice, allowing for off-label use or specific renewal protocols.

- Never Miss a Renewal: Get timely, customisable notifications well before your LARC expires to schedule your appointment.

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QUICK ACCESS
Extend your period tracking to your home screen for maximum convenience.

- Widget Support: Use the home screen widget for quick view of your next predicted period due date.

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WEAR OS INTEGRATION
Extend your period tracking to your wrist for maximum convenience.

- Quick Logging: Use the companion Wear OS app for simple, fast logging of periods.

- At-a-Glance Information: Quickly view your predicted next cycle date and important reminders without needing your phone.

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DATA PORTABILITY
We make sure your health data is always accessible to you.

- Export and Import: Retain full control with the ability to easily export and import your personal health data whenever you need it.

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Choose Menstrudel: The secure, open source, and truly offline period tracker that respects your privacy.
Updated on
Mar 4, 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

Initial release of Menstrudel!

App support

About the developer
Joshua Whitticase
joshwhitticase@gmail.com
United Kingdom