The moment you sell,
you're a vendor.

Card shows, group chats, or your buddy at work. Track what you actually earned.

$1M+ tracked in transactions, from full-time booths to weekend flippers.
Where you sell

Wherever the deal happens.

You don't need a booth to want the numbers. Log it where you are, in seconds, and the profit follows you from one place to the next.

At a card show

Show Mode opens a session when you set up and closes the books when you pack down.

In a group chat

Log a sale in two taps, priced from Live Market Data, before the message thread moves on.

On Facebook or a stream

Same inventory, same profit math. Nothing gets rebuilt in a spreadsheet on Sunday night.

Trading with friends

Product out, product in, cash either direction. The differential is tracked like any other deal.

Out of a backpack at work

Your whole stock travels on your phone, priced and searchable, wherever you happen to be.

Show Mode

A show should close its own books.

When the deal does happen at a table, flip Show Mode on. Every sale, buy, and trade lands in one session, priced as it happens. Flip it off and the weekend is settled: gross, cost, profit, and the product that carried it.

Live · Rosemont Card ShowDay 2 · 4h 12m
$0
Today0 dealsProfit $0
Cash on hand$3,420
SELLUmbreon VMAX Alt ArtEvolving Skies · PSA 9 · Venmo+$1,240
BUYCollection lot, 4,200 bulkBulk lot · Cash-$620
SELL151 Elite Trainer Box ×3Sealed · Scarlet & Violet · Card+$174
TRADECharizard ex ↔ Mew ex + cashYou receive the difference · Cash+$85
SELLMonkey D. Luffy Manga RareOne Piece · OP-01 · Cash+$430
Gross
$4,860
Cost
$2,914
Profit
$1,946
Before
214 photos of cash and product, sitting in a camera roll with no context.
After
One settled show, every deal priced, filed, and counted before you pack up.
Inventory

If it's on the table,
it's in the system.

Raw singles, graded slabs, sealed product, sports cards from four leagues, memorabilia, even the supplies you resell. Not five tools and a spreadsheet. One inventory, one price engine, one history.

Every item carries cost, asking, and Live Market Value, so margin is known the second it enters stock.

Graded Charizard slab
Slabs
Charizard, Shadowless
PSA 10 · Market $284,000
Graded promo slab
Slabs
Pikachu with Grey Felt Hat
PSA 9 · Market $840
Raw single card
Singles
Mega Gengar ex
Near Mint · Market $86
Graded One Piece slab
Slabs
Portgas D. Ace, alt art
PSA 10 · Market $310
Sealed booster box
Sealed
Booster boxes, ETBs, bundles
Priced from Live Market Data, refreshed nightly
Booster pack
Packs
151
Market $7.40
One Piece booster pack
Packs
One Piece, OP-05
Market $4.60
Plush
Collectibles
Plush, figures, supplies
Anything you put on the table
LeBron James rookie card
Basketball
LeBron James, rookie
2003 Topps Chrome · Market $33,100
1952 Topps Mickey Mantle
Baseball
Mickey Mantle, #311
1952 Topps · Market $46,960
Shohei Ohtani autograph card
Baseball
Shohei Ohtani, auto 25/25
2026 Topps 1991 · Market $10,700
1979 Topps Wayne Gretzky rookie
Hockey
Wayne Gretzky, rookie
1979 Topps · Market $910
Signed jersey
Memorabilia
Signed jerseys and gear
Cost, asking, and profit, tracked the same way
Signed helmet
Memorabilia
Game-worn helmets
One-of-one items, priced by hand
Sealed booster box
Sealed
Cases and collector boxes
Market $189
Toploaders
Supplies
Toploaders, sleeves, cases
Stocked and sold like anything else
PokemonOne PieceYu-Gi-OhMagicDragon BallLorcanaDigimonRiftboundStar Wars UnlimitedPalworldGundamSportsEnglish · Japanese · Chinese · Korean
Buyer Catalog

Your whole stock, one link.

Send it to a buyer, drop it in a group, or put the code on your table. You can only talk to one person at a time, so let everyone else browse your live inventory on their own phone and tap what they want.

Buyer catalog on a phone
QR code to a buyer catalog
Or scan itPrint the code for the table, or just send the link.

They search, you sell

By product name or number, across everything you own, without digging through a single box.

Interest lands on your phone

A buyer taps what they want. It reaches you mid-transaction, so nothing walks away unasked.

Live when you are

Your catalog shows a Live ring the moment Show Mode is on, so regulars know you're selling today.

1,000+
Sellers tracking stock and profit on VendOS
12
Brands in one catalog, four languages deep

Anyone can be a vendor.

Start with one card. We'll track the rest.