C Sort is a desktop app that runs on your machine, drives your own scanner and label printer, and keeps your inventory yours. No cloud lock-in, no per-card babysitting.
Feed your scanner — each card identifies itself (name read off the scan, matched to the card database). Or import a CSV from any collection app. Misreads are flagged, never silently dropped.
A visual grid of your batch — click cards, hit NM / LP / MP. Multi-select, bulk apply, done. No robot pretending it can grade your cards for you.
Every card gets its own price from live market medians (multiple price sources). You set one catalog-wide margin — the app computes each card's price, enforces a $1-net-profit floor, and auto-routes true bulk into bulk-box lots instead of penny listings.
Both platforms included. Inventory stays matched — a sale on one side decrements the other. Your listings, your seller account, your reputation — C Sort is the automation, not a middleman.
Drop the shipping label (PDF, JPG, or PNG) onto the app — it prints to your thermal label printer, barcode-safe, no driver fights.