Cookies and browser storage
Updated: 2 November 2026
Your statistics choice
Technical storage provides functions you request and does not depend on consent to statistics. Scrolling, navigation or closing a page are not consent. Change your choice below, including after refusing. To remove language, settings and sign-in too, clear site data in your browser; you may need to sign in again.
Google Analytics retains granular event data for 2 months and user data for 14 months, with the user period resetting on new activity. These controls do not determine retention of most standard aggregated reports. The site’s Analytics cookies last at most 180 days: cookie lifetime and Google-side retention are separate settings.
lang — language preference
First-party cookie, 365 days. Remembers your chosen language; does not measure visits.
cymatics.visitor.v1 / cymatics.analytics16.v1 — age range and statistics preference
Only this browser remembers your declared range (under 14, 14–15, or 16 or older), until changed or cleared. Statistics stay off unless someone aged at least 16 separately allows them. Choosing a range again turns statistics off. We do not collect a birth date or send the range to Google.
cymatics.settings — settings
First-party localStorage until changed or cleared. Stores the visualizer settings you choose.
sb-…-auth-token — sign-in
Supabase localStorage when signed in. Keeps and refreshes the sign-in session; ends on sign-out or clearing site data. Separate from statistics.
cimatica_fb_signup — Facebook registration
Used only if you start Facebook registration when available. This essential first-party cookie ties the declaration and the provider’s response to the same attempt to prevent forged requests. It expires within 10 minutes. Facebook manages cookies on its own website separately.
App cache
The service worker may cache app files for loading; remove these in browser settings together with site data.
_ga and _ga_9K2ZSZ5B49 — Google statistics
First-party cookies on .cimatica.org, only after consent, at most 180 days. Distinguish browsers and sessions for GA4. Google receives events; these are not necessary for the visualizer.
Accounts from age 14
An account requires age 14 or older. We do not ask for your date of birth. If you are under 14, use guest mode without an account. This declaration is separate from consent to statistics. Existing accounts must confirm before using account functions; export, photo removal and account deletion remain available in the profile. We store only the declaration version and date. We do not offer a parental-consent process.