Underpriced - The #1 Price Checker App

I'm the developer of Underpriced.app, a tool I built specifically for flippers and resellers who are tired of guessing if a deal is actually worth their time. Every reseller has been there: You see something at a thrift store or on Facebook Marketplace, think "that might be worth something," but you're not sure. So you either pass and potentially miss out on $200 profit, or you buy and end up with another item that sits in your death pile for 6 months. I built Underpriced to eliminate that uncertainty. ✨ Every Analysis Includes • Deal Tier – HOT DEAL / GOOD DEAL / FAIR / PASS • Deal Score (0-100) – Quantified deal quality • AI Confidence % – How certain the AI is about its valuation • Item Identification – Brand, model, era, key specs, authenticity markers • Category Detection – Auto-detects category and applies specialized expertise (electronics, fashion, furniture, collectibles, watches, etc.) • Market Value Range – Low/median/high based on real market data • Personal Use Value – Savings vs. buying new/retail • Flip Value – Profit, margin, demand, time to sell, best platforms • Red Flags – Overpriced items, potential scams, authenticity concerns, missing information • Things to Check – Category-specific inspection points before you buy • Data Sources – See what data backed the valuation 🎯 What Makes This Different From "Just Googling It" or asking ChatGPT? This isn't a price lookup. It's a flip-focused analysis engine that tells you: • Exact profit potential – Not just market value, but YOUR profit after fees, shipping estimates, and your purchase price • Profit margin % – Know instantly if it's a 20% flip or a 200% flip • Demand level – Is this a quick flip or a slow burn? (High/Medium/Low) • Time to sell estimate – Days, weeks, or months? • Best platforms to sell on – eBay, Poshmark, Mercari, FB Marketplace – where will THIS item sell fastest and for the most? • Deal Score (0-100) – Instant gut-check. 80+ = grab it. Under 40 = walk away. One screenshot. 15-30 seconds. You know if it's worth buying. 🔥 Two Ways to Use It 📱 Online Sourcing Mode Browsing Facebook Marketplace, eBay, Craigslist, OfferUp, or any online listing? Screenshot it. Get instant analysis with: • What it is (brand, model, year, specs) • What it's actually worth • Your profit if you flip it • Red flags to watch for • Platform-specific fee calculations 🏷️ In-Person Sourcing Mode At a thrift store, garage sale, estate sale, or flea market? Snap a photo of the item and price tag. Get the same comprehensive analysis in seconds – while you're still standing there deciding. No more "let me look this up" while someone else grabs it. No more buying blind and hoping. 🧩 Chrome Extension Install the extension and analyze listings without leaving the page: • One click on any eBay, Facebook Marketplace, Craigslist, OfferUp, Mercari, or Poshmark listing • Results appear in a popup – no tab switching • Select specific areas to analyze (great for multi-item listings) • Same powerful analysis, faster workflow 📋 Flip Tracker – Your Reselling Command Center A complete flip tracking system built into the app: Track Every Flip • Purchase details – What you paid, where you sourced it, date acquired • Listing details – Where you listed, asking price, listing date • Sale details – Final sale price, fees, shipping costs, profit • Status tracking – Sourced → Listed → Sold Real-Time Analytics • Total profit across all flips • Average ROI % • Average days to sell • Best performing categories • Profit trends over time Why This Matters Most resellers track nothing or use messy spreadsheets. This gives you actual business intelligence: • Know your true ROI (not what you think it is) • Identify what categories make you the most money • See how long inventory actually sits • Make smarter sourcing decisions based on YOUR data 💎 Premium AI Tools (Reseller Tier+) These are the features that turn casual flippers into serious resellers: 🧠 Deep Dive One-click comprehensive market research: • Price history and trends • Cross-platform price comparison • Authentication tips for your specific item • Detailed condition impact on value • Expert-level verdict 💬 Negotiator AI-generated negotiation strategy: • Leverage points specific to the listing • Target price recommendation • Copy-paste messages ready to send the seller • Counter-offer scripts • Walk-away price 📈 Plan My Flip Complete listing generator: • SEO-optimized titles • Professional descriptions (copy-paste ready) • Pricing strategy with minimum/target/aspirational prices • Photo tips specific to your item • Platform-specific recommendations • Shipping suggestions 📊 eBay Comps (Beta) Real sold listing data pulled directly from eBay: • Actual recent sale prices (not asking prices) • Median, low, and high sale prices • Condition-based price breakdown • Sample size and data quality indicators • Verifies AI estimates with real market data 🚀 Try It Free 10 free analyses to start – no credit card required. → underpriced.app Happy flipping 🤝