Disclaimer and Terms

What Sleeve does

Sleeve reads the set code printed on a trading card using your camera, and opens a search for that code on Cardmarket in your own browser. That is the whole app.

It holds no card data of its own. It shows you no prices, no listings and no stock, because it never asks Cardmarket for any — it builds a web address and hands it to your browser.

Using Sleeve means accepting what is set out below. If you do not accept it, do not use the app.

The reading is a guess, not a lookup

Sleeve reads the code with a camera, and it gets it wrong sometimes. Check the code on the page against the code on the card before you act on anything you see there.

Sleeve is reading a couple of millimetres of print, often through one or two sleeves or a toploader, in whatever light the room has. It will sometimes read nothing, and it will sometimes read the wrong thing.

The failure worth knowing about is the quiet one. A misread is not always an obvious error: a 0 read as an O, an 8 as a B, or one digit read as another can produce a code that is perfectly valid and belongs to a different card. Sleeve cannot tell those apart, so it opens that card’s page confidently and nothing looks wrong. On some games a single character separates a rare alternate art from an ordinary printing worth a fraction as much.

This is why Sleeve shows you the code and waits for you to confirm it before opening anything. If you switch that off in settings — "Open matches straight away" — you are removing the only check there is.

Sleeve knows the code, not your card

A code says which card, not which printing. Condition, foil, edition, language, signed or special printings, and alternate arts are yours to judge, and Sleeve deliberately does not try to.

That is why it lands on a page of search results rather than on one product. Several results for one code is the normal outcome, not an error — and picking the wrong row is easy to do. No result at all is also possible: a card may not be listed, a set may be too new for the rules Sleeve carries, or the search may simply answer with a crowd of cards that are not yours.

Not every card of a supported game can be read. Sleeve only works with games that print a set code on the card, and for Pokémon only with cards printed since the Scarlet & Violet era began in March 2023 — earlier cards print a set symbol instead, and there is nothing for Sleeve to read.

Everything you see afterwards is Cardmarket’s

Once the page opens you are on Cardmarket’s website, in your own browser, under Cardmarket’s terms and privacy policy rather than this one. Sleeve has no part in it and cannot see it.

Prices, listings, availability, sellers, and whether any of it is current are Cardmarket’s and its sellers’, not Sleeve’s. Anything you buy or sell there is a transaction between you, the seller and Cardmarket. Payment, delivery, returns and disputes have nothing to do with Sleeve.

Nothing in Sleeve is advice

Sleeve helps you find a page faster. It does not value cards, and nothing it does is an appraisal, a valuation, an offer, or a recommendation to buy, sell, hold or pay any particular amount.

What a card is worth, what you pay for it, and what you accept for it are your decisions and your risk.

Sleeve is independent

Sleeve is an independent app. It is not affiliated with, endorsed by, sponsored by, or connected to Cardmarket or any game publisher, and no company named in it has reviewed or approved it.

Game names, set codes and company names appear in Sleeve for one reason: to say which game a code belongs to and which page to open. All trademarks, trade names and copyrights are the property of their respective owners.

It needs the internet, and it depends on someone else’s website

Sleeve cannot work offline. The page it opens is loaded from Cardmarket over your connection, and there is no cached or offline version of it.

Cardmarket can change its addresses, its search, or its site at any time, and Sleeve can stop working through no change of its own. When that happens Sleeve updates its card rules over the internet, and can switch a game off entirely rather than keep sending you to wrong pages. A game disappearing from the list is that working as intended.

Provided as it is

Sleeve is provided as it is, without any warranty that it will be accurate, available, uninterrupted, or suitable for any particular purpose. To the extent the law allows, Sleeve is not liable for loss arising from a code it read wrongly, a page it opened, a page it failed to open, or a decision you made on the strength of any of them.

That limit is not unlimited, and saying so is the honest part. Nothing here takes away rights you have as a consumer under the law where you live, and nothing here excludes liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot lawfully be excluded.

If this changes

If what Sleeve does changes in a way that matters, this document changes with it and you will be asked to accept it again rather than being carried over on an answer you gave to a different description. Corrections that do not change what Sleeve does will only update the date.

You can read this again at any time under About in settings.

Trademarks

One Piece Card Game — Bandai Namco, with One Piece created by Eiichiro Oda and published by Shueisha.

Pokémon Trading Card Game — The Pokémon Company, Nintendo, Creatures Inc. and GAME FREAK inc.

Riftbound: The League of Legends Trading Card Game — Riot Games, Inc.

Cardmarket — Sammelkartenmarkt GmbH & Co. KG.

Any other game, publisher, product or marketplace named anywhere in Sleeve belongs to its owner in the same way.

Who publishes Sleeve

Sleeve is published by Bluecoon, Rok Firšt s.p. Questions about this disclaimer go to info@sleeve-app.com.