CartLens is a high-fidelity, AI-powered shopping companion designed to transform physical shopping artifacts into structured digital intelligence. We bridge the high-friction gap between physical receipts and digital financial tracking using a cost-optimized, multimodal AI stack. Most consumers suffer from "Spending Blindness"—they know where they spent money, but they have no unified, product-level visibility into what they bought and how those prices fluctuate across different merchants.