Why I Built CartLens: An AI Receipt Scanner for Local Price Comparison
Online shopping has trained us to expect price transparency . Before buying a laptop, pair of headphones, or household item online, we can open several tabs, compare sellers, review price history, and decide whether a deal is actually good. In a physical store, that visibility largely disappears. We see one shelf price, at one location, at one moment—and usually make a decision without knowing…
Shopping online has conditioned us to expect clear pricing information. Before purchasing a laptop, headphones, or household item, we can compare prices from various sellers, review past price history, and decide if a deal is truly advantageous. However, in physical stores, this transparency largely vanishes. We observe a single shelf price at one location and time, and often make purchasing decisions without knowing what nearby customers paid for the same product.
This discrepancy is the motivation behind CartLens, an AI-powered receipt scanner designed for local price comparison, helping shoppers determine if they overpaid.
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