Technical suggestions

When I go in to a store which offers no WiFi or the building blocks my cell reception, I suggest that you allow the app to function on its own with out live updates to the shopping list. I had a hell of a time tonight trying to shop and couldn't mark off items on my list because the app was trying to connect to the server.

I'd also suggest that you allow for sorting of the shopping list so that the user can break down their shopping list in to meals. For example, I can't possibly shop for the entire week and deal with my small frig being stuffed with all the items. So if I could sort the list down to (day 1, day 2...) then I could make easier selections while at the market.

I'd also suggest that you condense items on the list. I see entries which have cucumbers on the top of the list and other ones on the bottom of the list. I had three different almond entries, four zucchini, three coconut and three cauliflower.  This makes it very difficult to get through the list quickly.