Cardboard Manager

Inventory for trading card sellers

Every card labeled, priced and one scan away.

Cardboard Manager keeps track of what you paid for each card, what it's worth today and which box it's in. A small QR label on the sleeve turns pricing, selling and trading into a quick scan with your phone.

Open the app See how it works ↓

2023 Prizm Silver #136 PSA 10 $250.00 CM-7K3QX9
Labels print on standard sheets, with the price and a code you can also type in.

How it works

The short version is below. The step-by-step guide walks through every screen.

  1. 1

    Add your cards

    Search the catalog or snap a photo and the card is identified for you, with its market value by grade. In a hurry? Jot down a note and fill in the details later.

  2. 2

    Print labels

    Each card gets a QR label with its price. Print a whole sheet at once, or start partway through a sheet you've already used.

  3. 3

    Scan to find and sell

    Point your phone's camera at a label to pull up the card, change its price or mark it sold. It runs in the browser, so there's nothing to install.

  4. 4

    Values stay current

    Market values for everything in stock refresh every night, so you can see which cards have moved since you priced them.

Built for the show floor

Start a show when you set up your table. Every sale, buy and trade from then on is counted toward it.

Sell a stack at once

Scan a customer's pile into a lot, apply a deal (buy 4 get 1 free, a percent or dollars off) and the sale is split across the cards by value.

Buy collections

Photograph the cards you're offered to see their values, settle on a price, and what you paid is spread across the cards so every one has a cost.

Trade with cash either way

Scan what you're giving, add what you're getting, and record any cash that changes hands. The cards you take in get a fair cost automatically.

Count the box at the end

See cash in and out, what the cash box should hold, whether you're over or short, your expenses and your net for the day.

Know your numbers

  • Cost, price and value for every card, and profit once it sells.
  • Where it lives: box, row and section, so you can actually find it.
  • Tags for anything else, like a consignor or a card you're holding.
  • Every change recorded, from the day it came in to the day it sold.

Ready to scan?

Cardboard Manager is invite-only for now.

Open the app