Cookies & storage

Last updated 2 October 2026

Propbook sets no cookies and loads no advertising or analytics scripts from other companies. That is why you don't see a cookie banner: everything below is either needed for the app to work, a choice you made, or anonymous audience measurement that the law exempts from consent — which you can still switch off.

Like any web app, Propbook keeps a few items in your browser's storage (localStorage, sessionStorage and an offline cache). None of them is shared with another company.

Needed for the app to work

ItemSet byPurposeDuration
sb-…-auth-tokenPropbook (sign-in via Supabase)Keeps you signed inUntil you sign out
propbook_v1PropbookYour journal and settings on this device (the only copy in guest mode)Until you clear it or delete your data
Offline cache (propbook-v…)Propbook service workerLets the app open fast and offlineReplaced at each update
pb_refPropbookA referral code you typed, until you subscribeUntil used or cleared
pb_econ, pb_sesstz, pb-scan-zonesPropbookEconomic calendar cache, your session time zone, screenshot-scanner settingsUntil you clear them

Your preferences

ItemPurposeDuration
propbook_theme_v2, propbook_palette, propbook_side, pb_look_v3Theme, colours, sidebar and layout you choseUntil you change or clear them
pb_open, pb_newsdismiss, pb_pip_last and similar interface keysRemember which panels are open, which notices you dismissed, Pip's last reviewUntil you clear them
pb_noanalyticsRemembers that you switched usage statistics offUntil you switch them back on
pb_hub_themeLight or dark theme you chose on the public siteUntil you change or clear it
pb_learn_v1Your progress and notes in the free ICT path (Learn). They stay on this device and are never sent to usUntil you clear them
pb_hub_tvRemembers that you asked to always load the live charts on MarketsUntil you clear it

Content from other companies, only when you ask

Two parts of the public site show content hosted by other companies. Neither loads anything until you click:

Anonymous audience measurement

ItemPurposeDuration
pb_aid, pb_aid_tA random identifier (and its creation date) used only to count visits and feature use on Propbook itself. It is never linked to your account, never combined with other data, never shared, and the events it tags contain no trades, P&L or account numbers.Renewed after 13 months; events deleted after 13 months
pb_lv, pb_ev_…Avoid counting the same visit or first-time event twiceEnd of the browser session / until cleared

This measurement follows the conditions under which the French data protection authority (CNIL) exempts audience measurement from consent. You can still refuse it at any time: Settings → Your data in the app, or the “Usage statistics” link at the bottom of the home page. If your browser sends a Global Privacy Control signal, nothing is collected.

Removing everything

Clearing this site's data in your browser settings removes all of the above. In guest mode, that also erases your journal — export it first from Settings.

Questions: propbookoff@gmail.com. See also our Privacy Policy.