I've used Listonic for the past few years and, while I enjoyed the app and found it useful for a time, the new layout with ads makes it very hard to see your entire list. It's also bothersome to reorder the list to the layout of your grocery store because you have to drag every item to where you want it in the list and, in my experience, it ALWAYS reverts back to the default view. In short: it's decent but there are better free apps out there.