Privacy & your data

• There are no user accounts for the app itself, and there is no sign-up to use any feature.
• Your birth date, the people you save, your couples and your settings are stored only in your own browser or app storage on the device you are using.
• None of that is sent to us, synchronised between devices or backed up anywhere. If you clear the app's data or uninstall it, it is gone.
• We do not sell data, and we do not share it with advertisers.

• Your own birth date and any names and birth dates you add under People.
• Couples you create and comparison settings.
• Reminder preferences, including the time of day you chose.
• Your theme choice, chart range and which explanation panels you have opened.
• Any AI reflection you generated is cached locally so it does not need regenerating.

Nothing is sent anywhere until you press Generate. When you do, the app sends only the numbers needed for that reflection — the calculated rhythm values for the day, the Moon phase, and for the Star Sign feature the sign names involved — to an AI model through the Lovable AI gateway. Full birth dates are not included in the request, and first names are only included where you have asked for a named comparison.

The reflection returned to you is stored on your device. Access is limited by a shared password so the feature is not open to the whole internet.

Reminders are scheduled on your own device from data already stored there. Permission is only ever requested when you turn reminders on from the Alerts page, never on load. There is no push server, so we never see when or whether a reminder fired. You can switch them off at any time in Alerts or in your device settings.

The app exposes its rhythm calculations to AI assistants over an authenticated endpoint. Connecting an assistant requires signing in and approving access, and that sign-in creates an account used only for agent authorisation. It does not sync your saved people, and it is not required to use the app.

The website is served by our hosting provider, which processes standard request information such as IP address and user agent in order to deliver pages and protect the service. We do not run advertising trackers or third-party analytics profiles.

• In the app: remove individual people and couples from the People page.
• Everything at once: clear site data for this site in your browser settings, or uninstall the app.
• There is nothing for us to delete on our side, because your entries never leave your device.

Biorhythm Compass is intended for a general audience aged 13 and over. It does not knowingly collect information from children, and since entries stay on the device, no personal information is transmitted to us in any case.

Biorhythm theory and star sign traditions are not scientifically established. Everything in this app is offered for entertainment, journalling and personal reflection only. It is not medical, psychological, financial or safety advice, and it must not be used to make important decisions about health, work or relationships.