CartSplit
CartSplit is a mobile + web app that builds one grocery list and automatically splits it into the cheapest set of carts across multiple online grocers you already use (Instacart retailers, Walmart, Target, Amazon Fresh, local chains). You paste or scan your list, set preferences (delivery windows, substitutions allowed, store loyalty, minimum order thresholds), and CartSplit recommends the best combination: “Order these 12 items from Store A, these 9 from Store B,” including fees, tips, and delivery costs so the math is real. It also flags price traps like small carts that trigger high delivery fees, and suggests swaps only when savings exceed a user-set threshold. This is not another grocery marketplace; it’s a decision layer that helps people spend less without doing spreadsheet work. Revenue comes from subscriptions and optional affiliate links where permitted.