Cookies
Cookies are small files a website saves in your browser. Arki Codes uses as few as possible, and none for advertising or tracking you across other websites.
| Name | Purpose | Type | Kept for |
|---|---|---|---|
| sb-…-auth-token | Keeps you signed in, securely | Strictly necessary | Until you sign out (refreshed while you use the site) |
| arki_device | A random id for this browser, so your account’s devices can be counted and removed | Strictly necessary (security) | About 13 months |
| arki_cookies | Remembers your cookie choice | Strictly necessary | 1 year |
| arki_study, arki_study_user, arki_study_tier (only on the study app’s pages) | Your study pass: lets the study app’s files load for your account, keeps each account’s saved data apart on a shared browser, and shows a free trial’s limits | Strictly necessary | Up to 3 days, renewed while you use it; removed when you sign out |
| Study app storage (browser storage and offline files) | Your progress, notes and plans, so the app works offline (synced to your account), its own name and height settings (never sent to us), and the files you download for offline use | Strictly necessary for the study app | Until you clear the site’s data; set aside when you sign out, removed from this browser when you delete your account here |
| arki_letter_… and arki.letter… (browser storage) | Remembers that you opened your welcome letter, and which letter you chose (student or board exam). The choice stays on this device and is never sent to us. | Preference | About 13 months (opened); until you clear the site’s data (your choice) |
| arki.theme (browser storage) | Remembers light or dark mode | Preference | Until you clear it |
Strictly necessary cookies can’t be turned off, because sign-in and security don’t work without them. We don’t use analytics or advertising cookies. If we ever add analytics, they will stay off until you allow them.