MarketCheck

MarketCheck helps you shop safely on Facebook Marketplace. ✓ Price Comparison - See if you're getting a fair deal by comparing with new and used prices ✓ Scam Detection - AI analyses listings for warning signs like new seller accounts, unusually low prices, and vague descriptions ✓ Seller Review - Check how long the seller has been on Facebook ✓ Image Check - Verify if listing photos appear elsewhere online How it works: 1. Browse Facebook Marketplace as normal 2. Click on any listing 3. MarketCheck panel appears with analysis 4. Click "Check this listing" for full AI analysis Free to use. Your data stays private - we don't store your browsing history.