Cards 500

App Name: Cards 500 Subtitle: Sports Card Market Intelligence Description: Cards 500 is the market intelligence platform for serious sports card collectors and investors. Track real eBay sales data, monitor live market indices, and make smarter buying and selling decisions backed by actual transaction data. LIVE MARKET INDICES Follow the Cards 500 Composite Index and six sport-specific indices — MLB, NBA, NFL, NHL, Soccer, and more — normalized like a stock market index so you can track the entire hobby in one number. REAL SALES DATA Every price is based on actual completed eBay sales, not asking prices. See 7-day, 30-day, and 90-day price history for any card in our database of 340,000+ cards and 370,000+ sales. PORTFOLIO TRACKER Build your collection, organize cards into custom lists, and track your portfolio's total value over time with the Portfolio Growth chart. MARKET INSIGHTS Discover momentum cards trending upward for 7+ days, find undervalued cards selling below their 30-day average, and identify grade premium opportunities showing the PSA 10 vs raw price difference. TOP DEMAND LEADERBOARD See which cards have the most active bidding and buyer interest right now, updated daily across all sports. PSA CERT LOOKUP Enter any PSA certification number to instantly pull grade, population data, and card images directly from PSA. PRICE ALERTS Set alerts on any card and get notified when the price moves past your target. WATCHLIST Monitor cards you're interested in buying or selling, organized into custom watchlist groups. Free to download. Pro plan unlocks unlimited access from $2.49/month — locked in for life if you join before January 1, 2027. Terms of Use (EULA): https://cards-500.com/terms