Privacy

Last updated: 8 October 2026

Whodoku is made by Manicgrin Media Ltd. The iOS app does not collect data. This page covers the website at whodoku.net.

What stays on your device

Your board size, music, soundtrack order, storm or fire, sound effects, “Automatically mark Xs”, patterned rooms, hard mode, cases closed, and whether you have seen how to play are stored in your browser’s local storage. That never leaves your device.

How we count visits

We keep a simple count of page views, visits, return visits, device type, referring site, when a case starts (board size, hard mode, new or shared house), and when someone taps a share button (which button, and whether it was the site or a finished case). That happens on our own server. We do not use Google Analytics, advertising cookies, or a third-party tracker.

To tell a visit from a return visit we store a hashed form of IP address and browser, the same idea as the spam check. We do not store the address itself, and we cannot turn the hash back into it. If your browser sends Do Not Track or Global Privacy Control, we skip the count.

What we may store on the server

If the puzzle pool is running, we keep anonymous houses (room layouts) uploaded by the iOS app or saved when someone finishes a case on the website, and anonymous completion times: how long a case took, and which house it was. No name, email, or account is required. We do not show you a timer. Sharing the site from the board only sends people to whodoku.net. Sharing a finished case uses a link to that layout only, not to you.

If you use “Report unplayable house”, we store that room layout, and optionally the Xs and accusations on your board at the time, so we can check whether the house can be solved. We also store a hashed form of IP address to slow down spam. We cannot turn that hash back into your address. Reports are not tied to your name.

If you send feedback from the website, we store your note, and any name or email you choose to include, so we can read it in the admin area. Email is optional and we do not send a reply automatically. We also store a hashed form of IP address to slow down spam. We cannot turn that hash back into your address.

During a visit we remember the houses you have already been given, in a session cookie, so “New puzzle” does not hand you the same pre-generated house again. That list is forgotten when you close the browser. We do not keep a long-term history of which houses you have played. A hashed form of IP address may be stored with an uploaded house so we can slow down spam. We cannot turn that hash back into your address.

We do not sell data, run ads, or build a profile of you.

Cookies

A session cookie keeps track of houses already shown in this visit, so “New puzzle” does not hand you the same pre-generated house again. That list is forgotten when you close the browser. Game preferences in local storage are separate, and stay on your device. We do not set analytics cookies.

Contact

Questions: use Feedback on the game, or email hello@whoduku.net.