Print barcode price stickers. Sell on your own POS.
Stash turns your inventory into scannable barcode labels, title, price, grade, key, and a Code 128 SKU, then keeps your books in sync when you sell at a show.
Stash Management prints barcode price labels for comic inventory and integrates with handheld POS systems like Square: print a SKU sticker for each book, scan it at your booth to ring up the sale on your own card reader, and Stash marks the book sold with its price and profit automatically.
Inside the Barcode Labels & POS.
Select and print
Select any set of books and print barcode price stickers as a PDF, onto standard Avery 5160/5167/5163 sheets or thermal rolls. Each label shows the title, issue, price (the same number the app shows), grade, key note, and a Code 128 SKU barcode.
Stick it on the bag or board
Put the label on the bag/board, not the book, so the comic stays pristine. The SKU is the book's permanent ID across reprints and re-syncs.
Scan + sell on your own hardware
Stash pushes your for-sale books into your POS's catalog (Square first), so scanning the sticker at your booth makes your handheld recognize the exact book and price. You take the card payment on your own device. Stash is never in the middle of the money.
Inventory updates itself
When the sale completes, your POS notifies Stash and the book flips to sold with its sale price, date, and profit. No double entry. (Labels + live Square POS are included from the Seller plan; connecting other POS systems is on Shop.)
Real scenarios.
The gear we recommend.
Square reader
Take card payments at your booth on a handheld. Stash auto-marks the book sold with its price.
Get a Square readerDymo LabelWriter
Peel-and-stick thermal label printer. No sheets to align, one label at a time.
Shop label printersAvery 5160 sheets
Standard 30-up label sheets for Stash's built-in Avery templates.
Shop label sheetsStash may earn a commission from these links, at no extra cost to you.
Other features you’ll use.
Comic Scanner
Stash's iOS scanner uses AI cover recognition plus barcode/ISBN scanning. Three seconds from camera-up to fully cataloged book.
Slab Calculator
For every book in your collection, Stash compares the raw value against the grade-uplifted value at each CGC tier, subtracts the grading fee, and tells you whether to slab, with the expected net gain.
Barcode Labels & POS questions.
What barcode does Stash print?+
Code 128 of a unique per-book SKU. The symbology POS systems match against their catalog. The price, title, and grade are printed as text beside it, like a retail price tag.
Do I need special label paper?+
No. Stash generates a print-ready PDF for standard Avery sheets (5160, 5167, 5163) you can buy anywhere, with a start-cell option so partial sheets aren't wasted. Thermal label rolls are supported too.
Which POS systems work?+
Square first. The most common handheld at cons and shops. Stash pushes your catalog and reads sales back via Square's API, and a universal CSV export/import works with any other POS. You always take payment on your own hardware; Stash never handles the money.
Which plan includes this?+
Barcode label printing and live Square POS sync are included from the Seller plan ($19/mo). Connecting any other POS, Clover, Shopify, and more, is on Shop.
Stop pricing comics
like it’s 2003.
Join the collectors and dealers who’ve already moved on. Free to start, $5/mo for the full hub.