Legal

Cookie Policy

Every cookie and browser key we set, and why none of them track you.

Last updated 28 Jul 2026

Visbig sets no analytics cookies, no advertising cookies and no tracking pixels. There is no Google Analytics, no Meta pixel, no session recorder, no product analytics. That is why you will not see a consent banner here: there is nothing optional to consent to, and a banner asking permission for a login cookie would be theatre.

Everything below is either strictly necessary to sign you in or a preference you set yourself. All of it is first-party, set by us and read only by us. Place of processing for every one of them is Vienna, Austria, where our servers run.

The categories, and which we use

CategoryWhat it meansDo we?
NecessaryWithout it the service cannot work. Signing in, and keeping you signed inYes
PreferenceRemembers a choice you made about the interfaceYes
MeasurementAnalytics on how you use the productNo
MarketingAdvertising, retargeting, profilingNo

Consent is required for the last two categories. We use neither, which is the whole reason there is no banner. If that ever changes, the banner arrives before the cookie does.

Cookies

NamePurposeLifetime
sln-visbig-auth.session_tokenKeeps you signed in. Without it every page load would ask for your password.Until the session expires or you sign out
sln-visbig-auth.session_dataA short-lived cache of your session so each request avoids a database round trip.Session
sln-visbig-auth.state, .pkce, .nonceSet only while you are signing in with Google, to prove the reply came back to the same browser that started the request. Deleted once sign-in completes.Minutes
sidebar_stateRemembers whether you collapsed the sidebar.7 days

Browser storage

These are localStorage keys, not cookies. They never leave your browser and are not sent to our servers.

KeyPurpose
visbig:return-sheet:*Unsaved edits to a return you are working on, so a refresh does not lose them. This holds figures from the return.
visbig:voice-speakerThe assistant voice you picked.
askVisbig:width, sourcesDock:widthHow wide you dragged the chat and sources panels.

Third-party requests

One asset on our site is fetched from a third party: a small script from unpkg.com that generates the launch screen when the app is installed to an iPhone home screen. It sets no cookies and collects nothing, but loading it does reveal your IP address to that CDN. We plan to serve it ourselves.

Payment pages are hosted by our payment gateway and set their own cookies under their own policy. That happens only when you open checkout.

Turning them off

Every browser can block or clear cookies, and you can clear site data for Visbig at any time. The controls live in your browser's settings:

There is no industry opt-out list to point you at, because we run no advertising or measurement trackers for those lists to cover.

Blocking the session cookie will sign you out and prevent you from signing back in, because there is no other way for us to recognise your browser. Clearing local storage loses unsaved return edits and your panel and voice preferences, nothing more.

Questions

Write to [email protected]. See also our Privacy Policy.