Privacy

Last updated 2 November 2026

Contourdle has no accounts, sets no cookies and shows no ads. Your games stay on your device. We only receive what you choose to send us.

01What stays on your device

Your progress, guesses, stats, streak and theme choice are saved in your browser's local storage so the game remembers them. They are never sent to us. Clearing this site's data in your browser deletes them.

02Anonymous usage statistics

We use Vercel Web Analytics to see how many people play and which puzzles are hard. It counts page views and a few game events: starting a game, finishing it (and in how many guesses), sharing, opening the 3D view, changing the theme and sending a suggestion.

It uses no cookies. Visits are grouped with a hash that is discarded every day, so we can't identify you or follow you across days or other sites. We see totals, never individual players.

03Suggestions you send

When you use Suggest, we receive the topic, your message, the sheet number, and your email address if you choose to give one. It is delivered to the developer's inbox by the email service Resend.

• We use it only to read your suggestion and, if you gave an email address, to reply.
• We don't add you to any list, and we never sell or share it.
• We delete messages once they've been dealt with.
• To limit spam, your IP address is checked against recent requests for up to an hour, in memory only. It isn't written down or kept.

Please don't include personal details you don't need to share.

04Services we rely on

• Vercel hosts the site. Like any web host, it processes your IP address and browser details to deliver pages and keep the service secure, under its own privacy policy.
• Google Fonts serves the typefaces, so Google receives your IP address when they load. See Google's notes on Fonts privacy.
• Resend delivers suggestions by email, as described above.

05Children

Contourdle is suitable for all ages but isn't directed at children under 13. If you're under 13, please don't include your email address or other personal details in a suggestion.

06Your choices

You can play without sending us anything. To have a suggestion you sent deleted, send another one saying so, from the same email address if you gave one, and we'll remove it.

07Changes

If this notice changes, the date at the top changes with it. For anything that matters, such as collecting new kinds of data, we'll say so in the game.

Questions? Use Suggest in the game. See also the Terms of Service.