Two significant problems:
1. No search feature makes this almost useless- the whole point is that that I want to be able to see if I already have an item when Im looking at a recipe or in the grocery store, having to scroll through everything is ridiculous.
2. When you scan something in rather than increasing the existing quantity it adds it as an additional item. Again, not useful if you have to do everything manually.
Funmachine22 about Grocery List: Out of Milk, v3.5.2