CartHappy is offering an extension to help users save on every grocery purchase.

CartHappy puts grocery shopping on autopilot. As you shop, it compares real prices across every major retailer, applies the coupons you'd otherwise hunt down yourself, and builds your cart for the lowest total — splitting across stores when that saves you more, building each store's cart for you so it costs no extra effort. It learns your regulars from your purchase history and builds your weekly list automatically, so you never start from scratch. It works inside the stores you already use — Walmart, Target, Safeway, Kroger and its family (Fred Meyer, King Soopers, Harris Teeter) — with more on the way. No new habits, no extra time, no subscription. Now live nationwide on the Chrome Web Store. Underneath the consumer product is one of the most detailed real-time views of grocery pricing in the US — 350 million price checks a day, tracked continuously at the SKU level across retailers. Where the legacy panel-and-survey providers infer what's happening on the shelf, CartHappy reads it directly. A data layer built for CPG brands, retailers, and analysts who need to know what shelf prices actually are, right now. Your groceries, always at the best price. Shop better. Live happier.

Founded 2025