Contact
Noggin is built and run by one person. There is no support queue and no bot — every message is read by the person who can actually fix it.
Use this for anything: a bug, a puzzle that felt wrong, a question about your account, a privacy request, or an advertising or business enquiry. Replies usually come within a few days — it is one person, not a rota.
The feedback form
For anything about a specific puzzle, the feedback form is better than email. It sends the puzzle number, your screen size and the version of the site your browser loaded, which is usually the difference between a bug that can be reproduced on the same day and one that cannot be reproduced at all.
Every game also has Send feedback in its menu, which knows which puzzle you were on without being told.
An email address on that form is optional and blank by default. Leave it empty and the report is anonymous; fill it in and it is used to reply and nothing else.
Your account and your data
To have your account and every score on it deleted, or to ask for a copy of what is held, email admin@noggin.games. The privacy policy sets out exactly what that is — it is a short list, and it is written against the actual database rather than from a template.
Reporting a problem with the site
If something is broken, the most useful report names which game, which puzzle number (it is printed above every board) and what you expected to happen. "Rung would not accept SLOE" or "Spectrum said the Nile is 6,650 thousand km" can be acted on the same day. "It's broken" takes a lot longer.
About the site
What Noggin is, why it works the way it does, and who it is for: About Noggin. The terms of use and the privacy policy cover the legal side.