Deal.ai

Deal.ai is an AI shopping agent. Tell it what you're looking for ("the best noise-cancelling headphones under $300") and it researches the options, compares live prices across thousands of stores, from Amazon, Walmart, Target and Best Buy to small Shopify shops, and sends you to the store with the best deal. Product pages show price history where it's available, and Deal.ai checks advertised deals against prices at other stores. It also finds flights, hotels, used cars...