Menstrudel

Menstrudel is an open-source period tracker designed with a focus on privacy and offline use. It addresses the need for personal health tracking without compromising user data, ensuring that all period and symptom information remains stored locally on the user's device. There are no accounts, cloud storage, or data tracking involved, and the app operates fully offline, so personal information never leaves the device.

The platform provides features for tracking menstrual cycles, symptoms, and intensity through a streamlined interface. It includes smart prediction tools that use the user's history to forecast upcoming cycles. Menstrudel also supports pill tracking, accommodating 21-day, 28-day, or custom contraceptive packs with simple daily logging. For those using long-acting reversible contraceptives (LARC) such as IUDs, implants, or injections, the app offers management tools and proactive alerts for renewal dates. Custom alerts can be set for periods, medication, and contraceptive renewals, helping users stay informed about their health routines.

Menstrudel is built to be accessible to a broad audience, with community-driven translations available in multiple languages. The app is available for download on Google Play and the App Store, and its open-source code is hosted on GitHub. It is free to use and does not include advertisements or require sign-ups. Menstrudel positions itself within the class of period tracker apps, with a distinctive emphasis on privacy, transparency, and a commitment to keeping user data off the cloud.