Privacy

No accounts

There is no sign-up. The first time you answer, we make an anonymous player record and keep its id in a cookie, so your streak and today's game follow you. We never ask for your name or email.
The same id is kept in your browser's local storage, so clearing cookies alone does not start you over. Your sound setting is kept there too.
To recognise a returning player whose browser storage was cleared, we keep a one-way hash of your IP address, browser and language. The address itself is not stored.

Your answers, scores, streaks and timezone, and any answer you report or result you share. Answers are counted across all players to set how rare each one is.
We do not sell this data or share it with anyone except as below.

Ads are served by Google AdSense. Google and its partners use cookies to serve ads based on your visits to this and other sites. How Google uses this information.
You can turn off personalised ads in Google's ad settings, or opt out of other vendors' cookies at aboutads.info.
Visitors in the European Economic Area, the UK and Switzerland are asked for consent before ads use cookies.

Visits are counted with Plausible, which uses no cookies and keeps no personal data.

The One is for a general audience. We do not knowingly collect personal information from children under 13.