Privacy, in plain English
We keep this short because we would rather you read it than skim past a wall of legal text. Last updated 11 November 2026.
What lives in your browser
Your progress, streak, history, stats and settings (such as vibration on or off) are saved in your browser's local storage. That includes a random player ID we make for you on first visit. It is not linked to an account, an email or your name, because we do not have any of those. You can see your player ID in the Stats window.
Clearing your browser storage resets all of it. That is the only way to start from zero, and we cannot do it for you.
The poster image you can share at the end is drawn on your device. We never receive it.
What we log, anonymously
Every prompt you play is logged, including misses and timeouts. Each row holds your random player ID, the date, the prompt, what you typed (cut to 80 characters), whether it was valid, the tier it matched, and how long it took. That is how the live “% of players gave this” numbers get made.
Missing-answer reports store the prompt and the suggestion you typed. Nothing else.
We keep these rows to calculate how rare each answer is, so they are not deleted on a timer. The rows contain no IP addresses. If you want yours deleted, email contact@casualdle.com with your player ID from the Stats window. We can only find rows by that ID, so without it we cannot match them to you.
What we don't keep in our database
Our database has no IP addresses, no user agents and no request headers. We have no accounts, no ads, no analytics and no tracking cookies in v1.
Our host, Vercel, keeps its own request logs and runs a firewall in front of the site. Those can record IP addresses and user agents under Vercel's own retention policy. We do not copy them into our database.
Who handles the requests
Casualdle is hosted on Vercel. Vercel processes IP addresses to serve the site and to rate-limit abuse, which is their job on our behalf. Our database is hosted on Supabase. Supabase receives requests from our servers, not from your browser.
Where the answers come from
The card is built from public sources:
- Fight and event data from the Greco1899/scrape_ufc_stats dataset, which is UFCStats data.
- Champions, nationalities and other facts from Wikipedia and Wikidata.
- Popularity signals from Wikimedia pageviews.
We check them, we get things wrong sometimes, and that is what the missing-answer report is for.
Not affiliated
Casualdle is an independent fan project. Not affiliated with UFC, Zuffa or TKO. Fighter and event names are used to identify things in the trivia, and that is all.
Questions, complaints, corrections
Write to contact@casualdle.com. Wrong answer on the card? Tell us and we will fix it.