Tooty Jane, the one my daughter uses is a simple one called Tote Bag. I went to Apps and typed in Tote Bag and downloaded it for 99 cents. I like it, too. It allows you to make several different categories/lists. I have one for each of the major places I grocery shop, and then in each category/list I have begun to list items I get from each particular place, and then select further categories which color code them, so that all of the dairy items are together, all fresh produce, etc.
I can email the whole thing to my hubby on his cell phone when he's out and about, but I maintain the ability to enter items. Hope this is useful to you.
shortmort: I've played with all recipes.com, but am not comfortable with the spinners, etc. However, all recipes.com is a favorite of mine on the internet. Maybe I need to put a little more effort into it. I have it on Kindle and seem to 'fight' with it. Thanks for mentioning it; I'll check it out again.