Cookie Policy

Last updated July 25, 2026

Groyper Quant uses one cookie, and it exists only to keep you signed in. There are no advertising cookies, no analytics cookies, no tracking pixels, and nothing that follows you to other sites — which is why you are not being nagged by a consent wall.

Cookies we set

Name	Purpose	Type	Expires
`gq_session`	Holds your signed-in session token so the server knows which account is asking. Without it you would be signed out on every page load.	Strictly necessary. `HttpOnly`, `SameSite=Lax`, `Secure` in production.	30 days, or when you sign out

Strictly necessary cookies do not require consent under the EU ePrivacy Directive or the UK PECR, because the Service cannot function without them. We do not set any non-essential cookie, so there is nothing to consent to or refuse.

Local storage (not cookies)

The app keeps a few things in your browser’s local storage. This data never leaves your device unless you explicitly share or report an answer:

Key	What it holds
`groyper_quant_chats_v1`	Your conversation history (questions, answers, citations)
`groyper_quant_user_v1`	A cached copy of your display name and provider so the UI renders instantly
`groyper_quant_research_mode`	Whether you last used Fast or Thinking
`groyper_quant_pending_ask`	A question you typed before signing in, so it can be sent after you do
`groyper_quant_ui_v1`	Interface preferences, such as dismissed notices and sidebar state

Clearing site data in your browser deletes all of it permanently. We cannot restore it.

Third-party cookies

Stripe — when you open checkout or the billing portal you are on Stripe’s domain, where Stripe sets its own cookies for fraud prevention and session handling. See Stripe’s cookie and privacy policies.
Cloudflare — if proxying is enabled, Cloudflare may set security cookies such as __cf_bm to distinguish humans from bots.
Sign-in providers — X or Google set cookies on their own domains during the login redirect.
Google Fonts — the interface font is requested from Google’s font CDN, which receives your IP address as part of a normal HTTP request. No cookie is set for it.

Managing cookies

You can delete or block cookies in your browser settings, and browse in a private window to discard them on exit. If you block gq_session you will not be able to stay signed in, and the Service will not work while sign-in is required.

Questions

Email [email protected]. See also the Privacy Policy.