Privacy

What this site stores

No accounts. Scores, streaks, and theme live in this browser. Google Analytics is the one third-party script, and it sets a cookie.

Your best, your streak, and which theme you picked are written to localStorage on this device. Clearing site data clears them. Nothing is sent to a thumbpower server — there is not one for scores.
Google Analytics 4 runs on every page, measurement id G-GGSXGJ775F. That script sets a tracking cookie and sends page views to Google. That is the only tracking cookie on the site.
Challenge links put a score in the URL (?c=) so the person you send it to can see the number. There is no name field. Values outside a sane range are ignored.
No ads, no sign-up, no sale of data. If the Analytics id is cleared in the source and the site is rebuilt, the cookie goes with it.