About whatinstock

whatinstock is an inventory and resale tracking app built for the Whatnot community. It helps buyers log every win — from trading cards and sneakers to jewelry and collectibles — keep a video receipt for every deal, and watch their portfolio value and resale profit grow over time. Instead of scattered screenshots and forgotten order numbers, collectors get one clean dashboard that shows what they paid, what their stash is worth now, and how much profit they've actually realized.

The app is built for Whatnot buyers and resellers who treat their purchases like a portfolio. Whether you're flipping cards on the side or building a serious gemstone inventory, whatinstock gives you the tools to track cost basis, surface AI-estimated market values from live marketplace data, print labels for physical storage, and find your next win with a built-in market finder. It is designed to feel modern and fun to use, with visual financial dashboards inspired by tools like Monarch — because tracking your collection should feel as good as winning the bid.

whatinstock is built by a small team of collectors and software developers who got tired of losing track of their Whatnot wins. We built the tool we wished existed: one place for every purchase, every receipt, and every resale — with market estimates you can verify before you sell. We are independent and community-driven, and we are committed to making resale tracking accessible to every kind of collector.