One app runs your whole resale business — sourcing, inventory, and checkout. Built for one person with a rack, and for the shops, booths and crews they grow into.
Free to start · No credit card required

Five moves, beginning to end — and everything in between. SKUs, listings, storage spots, the math: Yanni takes care of it on its own.

Batch-print a sheet before an event. Scan any tag and Yanni rings it up in one tap.
The second it's paid: +$100.00 profit, logged — cost and fees already in the math.
Try the payment methods — the QR link updates.
Tag every item with where it came from — a thrift store, an estate sale, a seller on Whatnot or Depop. Yanni ranks your profit by source.
Racks, bins, shelves — assign a spot once and never dig through tubs looking for the thing you just sold.
Batch-print QR labels before an event — Rollo and Dymo ready, six thermal sizes. Scan any label and it rings up in one tap.
Share one link and buyers browse what's still available — it updates itself every time something sells.
Shopify and eBay via CSV export.
Point your camera at a label and the sale is half done. yanni.app runs full-speed in your phone's browser — no download, no App Store, nothing to update.
Label found
“Google Sheets and my Notes app could only take me so far.”
Field-tested at the Rose Bowl, on Whatnot, and at ThriftCon. I'm Johann. I've been collecting and thrifting vintage since I was 17. I'm a data scientist by trade, so I built the system I wished I'd had since the beginning.
Start free. Scale up as your business grows.
Set up in the time it takes to steam one jacket.