Privacy and terms

What Commonplace keeps.

Commonplace is a small personal project. There are no ads or analytics, and nothing is sold or shared for marketing.

What’s stored

When you answer your first question, Commonplace creates an anonymous guest account for your browser, with no name, email address, or password. If you choose to keep your shelf across devices, you can add an email address on the Account page; it is used only to send sign-in links. Linked to your account, Commonplace stores:

• which questions you were shown, the answer you chose (if any), and how long you took;
• when you chose Meet the book, Add to my books, or Next question;
• the books you add to your shelf.

This data is used only to run the site: to avoid repeating questions, vary topics, restore your place after a refresh, and keep your shelf. The site owner may look at totals, such as how often each book is opened, to improve the questions.

Cookies

Commonplace sets only the cookies needed to keep you signed in, as a guest or with your email. There are no advertising or tracking cookies, so there is nothing to opt out of.

Where it lives

Data is stored with Supabase, which provides the database and sign-in. Sign-in emails are sent through an email delivery service. Like any website, the hosting provider and these services may keep short-lived logs that include IP and email addresses.

Your data, your choice

As a guest, clearing this site’s cookies disconnects your browser from its account, and your shelf can’t be recovered; the records that remain aren’t linked to your name or email. If you added an email, you can sign in again from any device with a new link. To have your account and history deleted, or with any other question, contact the site owner through their main website.

Terms

Commonplace is offered as is, for curiosity and discussion. Questions are original; book titles, descriptions, and cover images belong to their authors and publishers and are shown only to identify the books. Links to publishers are for information, not endorsement or sale.

Last updated 28 September 2026. Back to Commonplace