Underpriced AI: AI pricing for thrift and eBay resellers, $5.2K in 30 days
Underpriced AI is a phone app for thrift and eBay resellers: photograph an item and the AI identifies it, estimates its resale price and drafts the listing. It made $5,212 in the last 30 days and $28,031 from January to September 2026, Stripe-verified. Small revenue, but a sharp niche — the whole business stands or falls on pricing accuracy.