Privacy

Last updated 9 November 2026

What Is Kept in Your Browser

Your rating, your best rating, your recent rounds, the mode you last used and the link that brought you here are kept in this browser's local storage. They are not shared with other sites. Clearing your browser data removes them.

What Is Recorded

When a round finishes, these details are sent to us:

• The game and mode, your rating before and after the round, and how many rounds you have played.
• Each question's type and difficulty, and how long it took to answer.
• A random ID created in your browser, so rounds from the same browser can be grouped.
• The campaign tag (utm) of the link that brought you here, if there was one.
• Your approximate country and browser type, which arrive with any web request.

No name or account is collected. The results are used to set question difficulty accurately and to count how many people each post or link brought in.

The Weekly Rating Email

If you enter your email on the results screen, it is stored with your browser ID and the link that brought you here. Each Monday you get one email with your rating, how much it changed and your slowest kind of question. It is only sent for weeks in which you played, plus one reminder after the first week you do not play. Every email has an unsubscribe link, and one click stops all email from Free Quant Games and Quanteric. If you unsubscribe, your address is kept on a list of addresses that must not be emailed.

Who Runs This Site

Free Quant Games is made by Quanteric. The data is stored by Supabase and the site is hosted by Cloudflare. These providers may process data in countries other than the one you live in. Quanteric's own privacy policy applies if you join its waitlist.

Questions

Email will@quanteric.com to ask about or delete the data recorded from your browser. Include the ID shown below so the right rounds can be found.