Quite a robust grocery store list app. I've had it for quite a while and have not really used it until my stepson Matt told me that he and Jen use it and they both have the app on each of their iPhones, they both make additions to one list that shows up on both phones. Well that sold me. After some digging into the app I find that I can have separate lists which I am treating as separate stores. The main grocery store, the Italian grocery store, the meat market, the co op and Trader Joe's. I also have one for the office supply store too. The more I use this app the more I like it.
You can get this in the iTunes app store.