Advertising and privacy
Underfolio is published by Crystl Labs. This notice supplements our general privacy policy.
Free and Pro
Advertising supports eligible public research pages. Signed-in Pro members receive no advertising scripts. Account, checkout and private research workspaces do not carry ads. Ad blocking does not remove free access.
Your advertising choice
Before requesting advertising providers, we ask for your advertising preference and check your current account entitlement. Google’s certified consent message collects any additional consent required for its advertising services. You can decline and continue using free research. We respect the browser Global Privacy Control signal by disabling advertising.
What advertising providers may receive
If you allow advertising, Google may receive your IP address, browser information, page address and consent signals and may use cookies or local storage under its policies. We request non-personalized ads; that does not mean no data processing. Private notebook contents, saved simulations and account details are not sent to advertising providers by our integration.
Storage and control
We store your language and advertising preference in this browser. Sign-in cookies maintain your account session. You may change advertising choices in the footer, clear browser storage, or use account controls to manage your saved work. Withdrawing consent reloads the page and stops further advertising requests from this integration. Previously transmitted data remains subject to the provider’s policy.
Questions or privacy requests: [email protected].