Updated September 19, 2026

Your information.

This page describes the current Gravitational Color prototype and website.

Accounts and check-ins

The app stores your email, profile preferences, household membership, device connections, and check-in records to provide the service. Weight values and range settings are encrypted in the application database. Account authentication and database hosting use Supabase; the app and website run on Railway. Transactional emails use Resend when email delivery is configured.

Your household

Household membership alone does not give other adults access to your measurements. Sharing requires your explicit choice. A parent can manage a child profile, including its ranges and result display. Adults must accept management and can revoke it. Managed child profiles do not require a child's email address.

Optional website analytics

If you allow analytics, this website sends a page-visit or app-link-click event to Mixpanel with a random session identifier and environment label. It does not send account identifiers, names, emails, weight values, ranges, check-in history, or URL parameters. There is no session replay or automatic event capture. The preference is stored in this browser and can be changed below. Global Privacy Control and Do Not Track disable analytics.

Controls

You can export your account data, revoke sharing, and delete your account in the app. If you own a household, you may need to transfer ownership and resolve managed profiles first. Account deletion removes the app's active measurement records and authentication identity; hosting-provider backups may retain copies until they expire.

Prototype limitations

Only enter information you intend to use with this prototype. It is not an emergency monitoring service. Website analytics is optional and is separate from the account cookies required to sign in.