"Is there an app that tells you how much something is worth?" Several, and they work in very different ways: some estimate from a photo, some show real sold prices, and one popular option shows shopping prices that are not resale values at all. Here are the ones worth using, with prices checked in October 2026.
Disclosure: this site is Value Identifier, one of the tools compared. We say where it loses, and every other price is from the vendor's own page or App Store listing, checked October 21, 2026.
| App | How it values | Free | Paid | Platforms |
|---|
| Value Identifier (ours) | AI estimate from sold prices found online | 1 scan a day, no account | $4.99/week or $24.99/year (web) | Browser, iPhone, Android |
| Curio | AI estimate from online listings | 3 scans | In-app plans from $4.99 | iPhone, Android |
| Underpriced AI | Sold comparables (eBay, Poshmark, Mercari) | First scan | 5 scans for $3; plans from $5/mo | Web, iPhone, Android, extension |
| PriceSnap | Mix of asking and sold prices | 3 scans a day, no sign-up | $9.99/mo or $99/yr | Web, Android |
| WorthPoint | Database of past sales | No | $26.99/mo or $249.99/yr | Web, iPhone, Android |
| eBay sold listings | Actual eBay sales | Yes | Free | Any browser, eBay app |
| Google Lens | Shopping results, not resale value | Yes | Free | Phone, Chrome, Google app |
Three kinds of "value" app
- Photo scanners (Value Identifier, Curio, Underpriced AI, PriceSnap) identify the item and estimate a value. Fast, and the only option when you do not know what you have.
- Sold-price data (eBay sold listings, WorthPoint) shows what comparable items actually sold for. Slower, but it is evidence.
- Visual search (Google Lens) identifies items and shows where to buy them. Useful to learn the name; its prices are retail, not resale.
1. Value Identifier (ours)
Listed first because it is ours, with that disclosure. Photo in, identification and an estimated price range out, based on recent sold prices the model finds online. One free scan a day in the browser with no account; the web pass is $4.99 a week or $24.99 a year (the iPhone app costs more). New, with few ratings, and it does not always show the listings behind a number.
2. Curio
The best-rated scanner in the App Store for collectibles (4.8 from 16,700+ ratings). Estimates from online listings, 3 free scans, then in-app plans. iPhone and Android only.
3. Underpriced AI
Built for resellers: it prices from sold comparables on eBay, Poshmark, Mercari and others. First scan free, then 5 scans for $3 or monthly plans from $5 to $199. Web, apps and browser extensions.
4. PriceSnap
A web and Android scanner with 3 free scans a day without signing up, and Pro at $9.99 a month or $99 a year. It mixes asking and sold prices and labels its results as estimates, not appraisals. An iPhone app was listed as coming soon.
5. WorthPoint
The paid sold-price database for antiques and collectibles: $26.99 a month or $249.99 a year in the App Store, no free plan, poorly rated apps. Worth it for dealers. See is WorthPoint worth it?
6. eBay sold listings (free)
Search eBay, tick "Sold items" and you see real recent sale prices. Free and reliable for anything that trades on eBay, once you know what to search for.
7. Google Lens (free)
Great at identifying, but its prices are shopping results for items for sale, usually new. Use it to learn the name, then check sold prices. More in Curio vs Google Lens.
