Privacy

The cards you enter, their condition, your submission plans and every verdict you have seen are stored in your own browser using local storage. They are not sent to a server, not attached to an account, and not visible to anybody else.

The practical consequence is that clearing your browser data deletes your collection, and it will not follow you to another device. That is a real limitation and it is the trade made for not holding your data at all.

The single card tool asks for nothing. No email, no signup, no login. There is nothing to delete because there is nothing stored.

The site runs no analytics, sets no advertising cookies, and embeds no third party tracking pixels. Nothing follows you off the site. Nobody is told what cards you looked up.

The site also has no affiliate relationship with any grading company, which matters here because it removes any incentive to nudge you toward submitting.

One thing: a cache of public market prices for cards, kept so the site does not have to buy the same price from a data provider repeatedly. A row holds a card identifier, a grading company, the prices at each grade and when they were fetched. It contains no information about you and is not linked to any person.

If you use the contact form, what you write and the email address you choose to give are stored so a reply is possible. Nothing else from your session is attached to it, and handled messages are deleted after one hundred and eighty days.

The site is hosted by Vercel, which means Vercel handles the requests your browser makes and keeps standard server logs, including IP addresses, for a limited period. The database holding the price cache is run by Supabase. Card and price data comes from third party market data providers, which receive card identifiers rather than anything about you.

These providers are infrastructure, not partners. None of them are sent your collection, because the site does not have it.

When you measure centering from a photo, the image is processed in your browser and never uploaded. It is not stored anywhere, including locally: only the resulting percentage is kept, and only until you close the page.

The site is not aimed at children and asks for no personal information from anybody. It collects nothing that would identify a child, or an adult.

If this policy changes, the date at the top changes with it. If something here is unclear or you want to know what the site holds about you, which is very close to nothing, use the contact form.