Cookies
Cookies and local storage
The game runs on very few cookies, and none of them is for advertising. This page lists all of them, including those set by our providers, and explains how to take back control.
Last updated :
The principle
Only one category exists on this site: strictly necessary storage, set because the site cannot work without it. No advertising storage is used.
No ad code is loaded, on any page, and no ad network receives anything.
The game's audience measurement sets no cookie at all. What is listed below is therefore the complete list of what the site sets on your device today.
Strictly necessary
The two Stripe cookies are set by the payment library, which loads as soon as the paid offer is shown on the end-of-free-games wall or on the trial page, and otherwise when you pay. They are set on the krillion.to domain, serve only payment fraud detection, are never used for advertising and cannot follow you to other sites.
The “Continue with Google” button is served by accounts.google.com, which uses its own cookies, on Google's domain, to display it. KRILLION neither sets nor reads those cookies, which is why they are not in the table above.
The “Continue with Apple” button loads a module served by appleid.cdn-apple.com, which sets and reads no cookie on krillion.to. Apple's sign-in window, opened only when you click, uses Apple's cookies on Apple's domain: KRILLION neither sets nor reads them.
| Name | Set by | Duration and role |
|---|---|---|
| echolow_locale | KRILLION, on krillion.to | One year. Remembers the chosen language so the page arrives in the right one |
| sb-… (session) | Supabase, on behalf of KRILLION | Up to 400 days, renewed when you come back signed in, cleared on sign-out. Keeps you signed in to your account |
| __Host-krillion-email-link | KRILLION, on krillion.to | One hour at most, cleared once you are signed in. Lets the sign-in link received by email complete in the browser that asked for it |
| __Host-krillion-apple | KRILLION, on krillion.to | Ten minutes at most, cleared when Apple sends you back. Set only when Apple sign-in happens in the tab rather than in a window (window refused or impossible, as in an app's built-in browser, Apple module blocked or not loaded yet): ties Apple's answer to the browser that asked for it |
| krillion_checkout_guest | KRILLION, on krillion.to | Two hours. Ties a payment started without an account to its own checkout session |
| __stripe_mid | Stripe, on krillion.to | One year. Payment fraud detection |
| __stripe_sid | Stripe, on krillion.to | Thirty minutes. Payment fraud detection |
Local storage, which is not a cookie
Your games, statistics, sound setting and language are written to your browser's local storage. That is not a cookie: none of it is sent with your requests and no third party can read it.
These entries exist because without them the game cannot show your history or your current streak. Each key is listed in the privacy policy.
During a game, the tab also keeps the game in progress in its session storage, so it can be resumed if the page reloads. That is not a cookie either: it disappears when the tab is closed, unless the browser reopens it by restoring your session, and it is never sent as such. Only the game token and, when a resumed round ends, the answer being typed at that moment go to the server, as in any ordinary game.
Audience measurement adds no cookie
The game records a few events to see where players get stuck. That measurement is ours, it stays on krillion.to and it loads no outside tool. It sets no cookie, neither ours nor a third party's.
It uses a single thing on the browser side: a random tab identifier kept in session storage. It is not a cookie, it travels with none of your requests, nobody else can read it, and it disappears the moment you close the tab. To tell two signed-out visitors apart, the server reuses the one-way IP fingerprint that already powers the game counter, and which it computes itself.
Because nothing is stored and nobody is followed from site to site, this measurement does not ask for your agreement. The fields recorded, the legal basis and the 90-day retention limit are set out in the privacy policy.
No advertising storage
No advertising cookie is set, by KRILLION or by anyone else: the site shows no advertising and loads no ad network code.
If the Google AdSense network, while it was in place, or its consent window set cookies on krillion.to, those cookies may still sit in a browser until they expire, as may any that the Monetag network set on 31 August 2026. The site makes no use of them and no longer renews them. Clearing them from the browser changes nothing in the game.
Why there is no cookie banner
No consent window is shown on this site, and that is not an oversight: the only cookies set are the ones the site cannot work without, described above, and those need no agreement.
So there is nothing to accept, nothing to refuse and nothing to withdraw.
Keeping control of cookies
- Your browser: block or clear cookies, entirely or site by site. Clearing krillion.to cookies signs you out of your account.
- Clearing the site's data also erases the games stored locally, unless you exported them from the Backup page first.
- Closing the tab is enough to erase the audience measurement tab identifier. There is nothing else to clean up on that side.