Last Updated: June 2026
Flowrical was built with a fundamental belief: your health data is yours and yours alone. Flowrical does not collect, store, sell, or transmit your period or cycle data to any external servers. Period.
All data you input into Flowrical (such as period dates, cycle length, and flow intensity) is stored locally on your device using your browser's localStorage. If you clear your browser cache or click the "Reset Data" button inside the app, your data is permanently deleted. We have no way to recover it because we never had it to begin with.
If you choose to use the "Sync Calendar" feature, Flowrical will connect directly to Google's secure API. Your cycle predictions are sent straight to your Google Calendar. Flowrical acts purely as a bridge and does not keep a copy of your Google account information or the events created.
Because Flowrical does not rely on a database, the app works entirely offline once loaded. You can turn on Airplane mode and log your days in complete privacy.
If we ever introduce new features, this policy will be updated. However, our core commitment—that we do not harvest or sell your personal health data—will never change.