CartHappy
Splits your grocery cart across stores, automatically
CartHappy launched on July 17, 2026 with 17 votes, #984 of 24,623 launches that month and more than 95% of that year's launches.
What it does
Most grocery apps show you deals inside one store. CartHappy compares 350M prices a day across 10,000 stores, auto-applies every coupon, and splits your cart to whatever's cheapest that week. It can also learn your regular list and build your cart automatically — WXYZ Detroit tested it live on TV, saving a family $28 instantly. We built ours as an extension because it works horizontally, sitting inside each retailer's environment while helping the shopper shop across stores, not locked into one.
Compare grocery prices, find digital coupons, and save money automatically while you shop online. CartHappy helps you build the cheapest grocery cart across your favorite stores.
Want to learn more about which retailers are included? Tap here CartHappy scans the store page, finds working discounts, and applies the best ones before checkout. Meet your Regular List, your personal shopping assistant. It remembers what you buy, finds the best prices across your retailers, and fills your carts automatically. Just review and checkout. Coupons clipped, prices compared, carts built, all without lifting a finger. Compare coupons, prices, and grocery carts across stores without changing how you shop. We automatically apply every coupon we can find, so you always get the best discount available. See exactly when switching stores or swapping items can save money. The extension…from carthappy.com
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I built a free app for New Yorkers to save money on groceriesJul 2026 · sbnyc.app · ▲13I built this because I see that grocery savings are achievable in NYC. People usually just go to the store they're used to going to, and it's rarely worth the effort of combing through card cashback, weekly coupons, CPG rebates. Most people leave real money on the table by not stacking them, and even more don't even know that these deals are out there.... so I built a way to automate it. You can use it for free, no login, currently NYC-only with ~690 stores. I built it so that you just search whatever you want (use commas if you want to search multiple items). Or - use the AI tool to help…
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