At Period Tracker, we believe your health data is your own. We have built this application with a "Local-First" philosophy, meaning your data stays on your device where it belongs.
We do not collect, upload, or sell your personal data. All information you log—including your cycle dates, symptoms, moods, and notes—is stored locally on your device's secure storage.
We do not use any third-party tracking scripts, analytics, or advertising IDs.
The app uses encrypted local storage to save your cycle history. This data never leaves your device. If you delete the app, all associated data is permanently removed unless you have created a manual backup (if supported by your OS).
Our notification system runs entirely on your device. We do not use remote push servers to trigger reminders. All logic for predicting your period and ovulation happens locally.
Since we do not store your data on our servers, you have total control over it. You can view, modify, or delete your data at any time directly within the app settings.