The card app that shows you why.
Scan a card and see what it's worth today, with the recorded prices that number rests on and a link to the completed sales, so you can check it yourself. Then list your extras on eBay.
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The problem
So when two apps disagree, and they do, there's no way to tell which one to believe. For a seller, the wrong number is the difference between a profit and giving a card away.
The same 25-card collection, priced in four different apps:
Source: TCGinvest, July 2026. Same cards, four apps, four different answers.
Hobbybook doesn't ask you to trust a number. It shows you what the number is made of.
How it works
Every card's price chart makes the same three things obvious, whether you're looking at a $4 base card or a slab you're about to list.
Each dot is a price that was actually recorded for that card. Where there's a gap, the line filling it is drawn and labelled as an estimate, never passed off as data.
You see how many real prices a number rests on. Six recorded prices and one recorded price are very different amounts of evidence, and you should know which one you're looking at.
One tap opens the actual completed sales for that card, newest first. Look at the sold listings yourself before you price, buy, or list.
For sellers
Built for people who buy in bulk, scan the lot, and sell what they don't keep. Hobbybook does the tedious parts of a listing. The decisions stay with you.
Photograph front and back. You get the set, the number, the player or Pokémon, and a condition estimate.
See the recorded prices and the completed sales for each card before you decide anything.
You type the number. Hobbybook never puts a price on a listing that you didn't set.
You decideHobbybook drafts the title, condition and details. You review it, and it goes up on your own eBay account.
You approve
Your prices, your listings, your account.
Nothing gets published without your say-so, and Hobbybook never sets a listing price on its own. A seller is the one who notices when a price is wrong, so a seller should be the one who sets it.
Who it's for
You need a number you can act on, and you're the first to notice when it's wrong.
Know what the binder is worth today, and see why.
A dad and his son got tired of apps that make up prices.
Hobbybook is built on Long Island by a father and son who sell cards: one lists hockey on eBay, the other collects vintage baseball. We use it every day. Every feature on this page exists because one of us needed it at the kitchen table.
Pricing
Hobbybook isn't open to everyone yet. Quoting a price before we know what it costs to run would mean making one up, and making up numbers is the thing we built this to stop.
Join early access and we'll email you once when Hobbybook opens up.
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