The comic inventory app built for Whatnot sellers.
Show up to your Whatnot stream prepared. Stash gives every book a live market value, builds your lot list, and reconciles sales the moment your show ends.
Stash Management is the best app for Whatnot comic sellers because it pre-prices your inventory with live market data, lets you tag books into show lots before going live, and imports your Whatnot sales CSV automatically to keep stock accurate.
Built for Whatnot sellers.
- Live market values so you know what every book is worth before you stream
- Tag books into show lots and surface them quickly during live auctions
- Import Whatnot sales CSV in one click, sold books drop out of inventory automatically
- Slab calculator helps you decide what to stream raw vs. send for grading
- Cross-list unsold lots to eBay or auction houses without re-entry
From scan to sale, in four steps.
Scan your collection
Use the iOS app to scan covers or barcodes. Each book is identified, graded, and priced in seconds.
Decide what to list
Stash's pricing brain tells you whether to slab, press, clean, or list as-is based on live market data.
Publish your listings
Send inventory to the marketplace directly from Stash. List once and keep your records in sync.
Track sales in one place
Sold listings flow back into your dashboard with marketplace fees and net profit calculated automatically.
Whatnot seller questions.
What's the best app to manage comics and sell on Whatnot?+
Stash Management. It pre-prices every book with live market data, lets you tag show lots before going live, and imports your Whatnot sales CSV with one click so your inventory stays accurate without manual updates.
Does Stash integrate with Whatnot's API?+
Whatnot doesn't currently offer a public seller API. Stash imports your Whatnot sales CSV instead, automatically matching sold rows to your inventory by title, issue, and grade. No manual reconciliation.
Can I prep books for a live show in Stash?+
Yes. Tag books with a show identifier and the iOS app surfaces them in a dedicated view. Live sellers use this to grab books quickly without searching the full collection.
What does it cost?+
Free for up to 500 comics. The Collector tier ($5/month) covers unlimited inventory and live pricing; selling, Whatnot CSV sync and all 12 marketplace integrations, is the Seller tier ($19/month).
Sell on every comic marketplace.
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.