Identify It. Price It.
Sell It.
Curio is great for learning about collectibles and their history. Underpriced AI picks up where identification ends - real sold data from the right source for each item (eBay, Poshmark, Mercari and category specialists) plus our own growing database of real resale sales, listing generation, inventory management, and marketplace publishing. Different tools for different goals.
Subscribe and start scanning immediately
Identification Is Only the First Step
Curio does a genuinely good job identifying collectibles and sharing their history - it's a fun app for collectors. But if you're a reseller, knowing what something is is just the first step. You also need to know what it's worth and how to sell it.
Identification without real market pricing means guessing what to charge
No sold data or market saturation to gauge demand
No way to generate listings or publish to marketplaces
No inventory managementto track what you've bought and sold
No profit tracking or financial reporting for your reselling business
Collections and badges are fun, but they don't help you make money
Underpriced AI vs Curio
| Feature | Underpriced AI | Curio |
|---|---|---|
| Identify any item from a photo | Antiques/collectibles | |
| Barcode scanning (books, CDs, vinyl) | ||
| Real sold comps with clickable links to verify | ||
| Sold data across eBay, Poshmark, Mercari, Facebook, Etsy, Depop | ||
| Live active listings | ||
| Market saturation + category sell-through | ||
| Platform fee / take-home calculator | ||
| Weekly price alerts on saved items | ||
| AI-generated listing title + description | ||
| Direct eBay publishing (10 markets) | ||
| Bonanza publishing | ||
| Cross-listing (one-click autofill) | eBay, Facebook, Poshmark, Mercari, Depop, Vinted, Whatnot, OfferUp, Etsy + more (Bonanza direct) | |
| One-tap reprice / refresh value | ||
| Inventory management (death pile, storage, tags) | ||
| Purchase price + profit/loss tracking | ||
| Analytics dashboard (ROI, aging, sourcing) | ||
| Estate & garage sale finder | ||
| Platforms | iOS, Android, Web, extension | iOS |
| AI model | Claude Opus 4.8 | AI (undisclosed) |
| Free first scan, no card | ||
| Starting price | Free scan, then $5/mo or a $4 5-scan pack | Free + in-app purchases |
Comparison based on publicly available information as of 2026. Curio's features and pricing may change — check Curio Antique Identifier for current details.
Beyond pricing: Underpriced AI also cross-lists your items to eBay, Facebook Marketplace, Poshmark, Mercari, Depop, Vinted, Whatnot, OfferUp, Etsy, and more — one click each, and a reminder to pull the other listings when it sells.
From Photo to Sold - In Minutes
1. Photograph It
Snap a photo of any item - not just collectibles. Electronics, fashion, furniture, toys, and more.
2. Get ID + Pricing
AI identifies the item and pulls real sold data from multiple platforms. You get a price range, comparable sales, and market demand.
3. List & Sell
Generate optimized listings and publish to eBay or Bonanza with one click. Track inventory and profits.
What Resellers Get Beyond Identification
Real Sold Pricing
Not estimated values - actual sold prices from the right source for each item (eBay, Poshmark, Mercari and category specialists like StockX and PriceCharting), with clickable links to every comparable sale. See exactly what the market is paying and verify it yourself.
Market Saturation
See how many active listings exist vs how many sell. High saturation means slow sales - avoid those items.
Inventory & Listings
Save items to inventory, generate eBay-optimized titles and descriptions, and publish directly to marketplaces.
Profit Tracking
Track purchase prices, shipping costs, marketplace fees, and net profit per item. Know your ROI by sourcing location.
Which Tool Is Right for You?
Choose Underpriced AI if you...
- Want to know what items are selling for, not just what they are
- Need sold comps from multiple platforms and market demand data to make buying decisions
- Want to generate listings and publish to eBay or Bonanza directly
- Need inventory management with profit and expense tracking
- Resell across all categories - not just collectibles and antiques
- Source at thrift stores, estate sales, and garage sales and need fast mobile pricing
Curio may be better if you...
- Collect items as a hobby and want to learn their history
- Enjoy building a digital collection and earning badges
- Want a social community of fellow collectors
- Are primarily interested in the story behind items, not their resale value
- Don't need to list or sell items on marketplaces
Simple Pricing
Starter
$5/mo
20 scans, free first scan
Pro
$12/mo
50 scans per month
Business
$59/mo
325 scans + analytics
Frequently Asked Questions
How is Underpriced AI different from the Curio app?
Curio focuses on identifying collectibles and learning their history - it's designed for collectors who want to catalog and share items. Underpriced AI is built for resellers who need to know what an item is worth and want to sell it. You get real sold data from the right source for each item - eBay, Poshmark and Mercari for general resale, category specialists for things like sneakers, watches, and trading cards, plus our own growing database of real resale sales - along with market saturation scores, listing generation, inventory management, and direct marketplace publishing - none of which Curio offers.
Can Underpriced AI identify items like Curio does?
Yes. Underpriced AI uses AI to identify items from photos, including the maker, era, materials, and distinguishing features. Where it differs from Curio is what comes after identification - it searches recently sold listings across eBay, Poshmark, Mercari and the right category specialist for each item, so you can see what the item is actually selling for right now and make informed buying and pricing decisions.
Does Curio provide pricing data for items?
Curio focuses on identification, history, and storytelling - it's genuinely great for collectors who want to learn about their items. But it doesn't pull real sold data from resale marketplaces, calculate market saturation, or help you determine a selling price. Underpriced AI is purpose-built for resellers - every scan includes comparable sold listings from the right source for each item - eBay, Poshmark, Mercari and category specialists - with links so you can verify prices yourself.
Can I list items for sale directly from Underpriced AI?
Yes. Underpriced AI generates SEO-optimized eBay titles and descriptions, auto-populates item specifics, and lets you publish directly to eBay and Bonanza with one click. You can also copy-paste listings for Poshmark, Mercari, Facebook Marketplace, Depop, and more. Curio doesn't offer listing or selling tools.
Is Underpriced AI only for collectibles and antiques?
No. While Curio is focused on collectibles and antiques, Underpriced AI works across all resellable item types - electronics, fashion, toys, furniture, sports cards, designer goods, and more. If you can photograph it and sell it, Underpriced AI can price it.
Can I use Underpriced AI on my phone while sourcing?
Yes. Underpriced AI has an iOS app and a mobile-optimized web app designed for one-handed use at thrift stores, estate sales, and garage sales. Snap a photo, get identification and pricing in about 30 seconds, and decide on the spot whether an item is worth buying to resell.
Ready to Turn Finds Into Profit?
Pick a plan and start scanning. See why resellers choose Underpriced AI over identification-only apps like Curio.
Try a Free Scan