Underpriced - The #1 Price Checker App
Flip Smarter. Skip Faster.
Underpriced - The #1 Price Checker App launched on January 3, 2026 with 6 votes, #2,272 of 14,584 launches that month and more than 75% of that year's launches.
What it does
Price checker, profit calculator, inventory tracker & AI tools - all in one reselling app. Wondering "what is this worth?" Snap a photo, get instant profit calculations with eBay comps. The best reselling app for thrift stores, garage sales & Facebook Marketplace. Free to try!
Scan items, check sold comps, and estimate profit after fees and shipping. See what's worth flipping before you buy. Try 5 items free
Scan any item and get Market Value, Sold Comps, Net Profit and a clear Flip or Pass before you buy. Browsing FB Marketplace? The extension shows profit instantly without opening another tab. Single Item: Analyze one item from a photo or listing screenshot. Barcode Scan: Scan a UPC or EAN for an instant product lookup and eBay comps. Add the asking price. Underpriced checks the comps, subtracts selling costs, and shows your projected profit before you buy. When there is no buy price, Underpriced focuses on the likely value range, expected seller payout, sell speed, and the evidence behind the estimate. Choose an example, then change the buy price. Fees, profit, ROI, and break-even update…from underpriced.app
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Underpriced AI – Snap a photo, get instant resale value with AIJan 2026 · underpricedai.com · ▲10Hey HN, I built Underpriced AI to solve a problem I had as a part-time reseller: standing in a thrift store trying to figure out if something is worth buying. How it works: - Snap a photo of any item - AI identifies the brand, model, maker, era, etc. - Pulls recent sold prices from eBay and other marketplaces - Gives you an instant valuation with confidence score You can also generate SEO-optimized eBay listings and publish directly from the app. Tech stack: Next.js, Claude API for vision/analysis, eBay API for market research and listing. The "Quick Scan" feature is designed for mobile…
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