Underpriced AI

Run your reselling business.
One app.

Snap your items, we identify them, price them with real sold-comp data, and track them in your portfolio — from sourcing to sale. Inventory, ROI, listings, and tax exports, all in one place.

Antiques, vintage, collectibles, sneakers, watches, books, electronics, brand-name clothing — whatever it is, we price it from the source that knows it best. The AI catches maker's marks, model numbers, and era details that make branded finds actually valuable.

Real sold prices — what items actually sold for — pulled from the right source for each item: eBay, Poshmark, and Mercari, plus category experts like StockX for sneakers, live watch-market data, and price guides for books, games, cards, and vinyl. A first edition gets priced like a first edition; a Rolex like a Rolex.

Not a black-box number — every scan shows the real sold comps behind it and the marketplaces we checked, so you can verify the price yourself in one click. Free AI hands you a guess with nothing behind it.

Powered by Claude Opus 4.8
Inventory dashboard with portfolio value
ROI tracking and profit reports
iOS and Android apps
Real sold prices from the right marketplace, not guesses
Auto-sync eBay sales and fees
Sourcing calculator with platform fees
AI-written listing titles + copy
Weekly price alerts on your inventory
Auction and fixed-price eBay listings
Barcode scan for books, CDs, and vinyl
Estate and sale finder by ZIP
Schedule C tax exports ready
Batch scan up to 10 items per haul
Multi-image scans for tough IDs
End and relist eBay listings in one click
Mileage log for tax deductions
Storage locations, tags, and bulk edits
25 bonus scans per referral
Import your existing eBay listings
Share scan results with a public link
Push notifications on iOS and Android
Copy-paste listings for Poshmark, Mercari, Etsy
Death-pile prioritizer for aging items
One-tap background removal on photos
Try a Free Scan

Up to 3 free scans, no card. Join 2,800+ resellers who've priced $1.9M+ in items.

How It Works

1. Source

Hit estate sales, thrift stores, and auctions with confidence. Scan any item for a fast buy-or-pass read.

2. Scan

Snap a photo - get sold prices, profit margins, and market demand in seconds.

3. Track

Log costs, manage your death pile, and know your ROI on every flip.

4. Sell

One-click publish to eBay and Bonanza — then cross-list to Facebook Marketplace, Poshmark, Mercari, Depop, Vinted, Whatnot, OfferUp, Etsy, and more in one click with our Chrome extension.

Vintage Polaroid SX-70 Land Camera

Cameras & Photography · Good - Working

Estimated Value

$285.00

Range: $225.00 - $375.00

Confidence
97%

Sold Comps

14 sold · 30 days

Market Demand

High

Generated Listing Title

Vintage Polaroid SX-70 Land Camera Original Chrome Brown Leather Tested Working Instant Film...

Example scan result from Underpriced AI

Full Workflow

From Death Pile to Sold

Track every dollar - purchase price, platform fees, shipping costs, and net profit. Then list to eBay in one click with AI-written titles and descriptions.

  • Upload multiple photos with background removal
  • AI-generated titles and descriptions
  • Track costs, fees, and profit on every item
  • One-click publish to eBay across 10 countries — plus one-click cross-listing to Facebook Marketplace, Poshmark, Mercari, Depop, Vinted, Whatnot, OfferUp, Etsy & more

List once. Sell everywhere.

One scan becomes a listing on eBay, Facebook Marketplace, Poshmark, Mercari, Depop, Vinted, Whatnot, OfferUp, Etsy, and more — the crosslist marketplaces filled in one click each by our free Chrome extension. And when it sells, we remind you to pull the other listings so you never double-sell.

See how cross-listing works →
Try a Free Scan →

What Resellers Are Saying

Latest from the Blog

Ready to Know the Flip?

Your next thrift find could be a $120 flip or a $5 waste of time. Stop guessing. Try one scan on us — see what your item is actually worth.

First scan on us — no card. $0.99 pay-as-you-go from there, or $5/mo for 20 scans if you want the subscription rate.

No annual commitment. Cancel anytime.