You're standing in someone's driveway holding a piece of pottery with a mark on the bottom you don't recognize. Is it a $5 decorative piece or a $500 vintage McCoy? Five years ago, you'd have to pull out a reference book or just guess. In 2026, you pull out your phone.
AI-powered identification tools have transformed how resellers scout. Here are the five best ones — ranked from free essentials to professional-grade subscriptions — and when to use each.
The Quick Comparison
| Tool | Price | Best For | Speed |
|---|---|---|---|
| Google Lens | Free | Everything — first tool to try | Instant |
| eBay Visual Search | Free (in eBay app) | Sold comps with photo | Instant |
| Underpriced AI | Free trial, then $9.99+/mo | All-in-one reseller tool | 5–15 sec |
| Curio — Antique Identifier | Free with limits, paid upgrade | Antiques and collectibles | 10–20 sec |
| WorthPoint | $28.99–$46.99/mo | Serious antique dealers, maker's marks | Varies |
1. Google Lens (Free) — Your First Line of Defense
Google Lens is the most underrated tool in a reseller's arsenal. It's free, it's already on your phone, and it works on virtually everything: clothing labels, pottery marks, electronics, books, toys, artwork signatures, and more.
How to use it: Open the Google app (or Google Photos), tap the Lens icon, and point your camera at the item. Lens will identify the item, show visually similar products with prices, and link to shopping results — all in under two seconds.
Where it excels: Identifying brand names from labels and tags, recognizing specific product models, finding the name and pattern of vintage dinnerware, identifying plants and art prints.
Where it falls short: It doesn't give you sold comps or profit calculations. It identifies what something is but doesn't tell you what it's worth to resellers specifically. That's where the next tools come in.
2. eBay Visual Search (Free) — Instant Sold Comps
The eBay app has a camera-based search feature that lets you photograph an item and see matching listings — including completed/sold listings if you filter for them. This gives you real market data on what similar items have actually sold for, not just what people are asking.
How to use it: Open the eBay app, tap the camera icon in the search bar, photograph the item. Filter results by "Sold Items" to see actual transaction prices.
Where it excels: Branded items with distinctive designs, electronics, sneakers, vintage clothing with recognizable patterns.
Where it falls short: Struggles with generic or unmarked items. Won't identify maker's marks or hallmarks — you'll need a loupe for that.
3. Underpriced AI ($9.99+/mo) — Built for Resellers
Underpriced AI is purpose-built for the reselling community. Point your phone camera at an item and it combines identification, eBay sold comps, and profit calculation in one step. It's the only tool on this list designed specifically to answer the reseller's core question: "Should I buy this, and how much will I make?"
How to use it: Download the app, photograph the item. Underpriced identifies it, pulls recent sold prices from eBay, and estimates profit after platform fees and shipping.
Where it excels: Speed. One photo gives you ID + comps + profit estimate. Ideal for high-volume sourcing where checking every item on eBay manually would take too long.
Where it falls short: Subscription cost adds up if you're a casual flipper. The free trial is limited, so test it during a big sourcing day to see if the time savings justify the monthly fee.
4. Curio — Antique Identifier (Free with Limits)
Curio focuses specifically on antiques and collectibles. It provides AI-powered identification with appraisal ranges — useful for estate sales where you encounter pottery, glassware, figurines, and decorative items you can't identify by brand alone.
Where it excels: Vintage pottery, glassware patterns, figurines, decorative arts. Gives estimated value ranges rather than just identification.
Where it falls short: Limited free scans per day. Doesn't integrate with selling platforms or provide sold comp data. Best used as a supplement to Google Lens, not a replacement.
5. WorthPoint ($28.99–$46.99/mo) — The Professional Database
WorthPoint is the heavy hitter for serious antique and collectible dealers. With access to over 200,000 maker's marks and a massive database of past auction and sale prices, it's the tool you turn to when nothing else can identify what you're holding.
Where it excels: Maker's mark identification (the stamp or signature on the bottom of pottery, porcelain, and silver), historical price data going back years, rare and obscure items.
Where it falls short: Expensive — the $28.99/mo Basic plan is worth it only if you regularly source antiques and collectibles worth $50+. Casual flippers won't get enough value to justify the cost.
No matter which AI tools you use, knowing what brands and items are worth looking for is half the battle. Our 2026 BOLO brand list gives you a cheat sheet of high-value items to watch for at every garage sale, and the beginner's guide covers the sourcing fundamentals.
The Physical Tools AI Can't Replace
AI tools are powerful, but they need clear images to work. And some identification requires physical examination that no app can do. A few inexpensive tools round out your scouting kit:
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Find More Garage Sale Apps
AI identification is just one piece of the puzzle. These apps help you find the best sales before you leave the house.
See the 10 Best Garage Sale Apps →The cornerstone guide to turning Saturday mornings into profit.