So far, I have read a little on Apple’s iPhone Developer site about Human Interface Guidelines and Planning your app. I’ve also did some looking around and thinking about a database structure, and what kind of things I do and what I don’t want in my app. Currently I have:

• multiple lists
• checkboxes to check of items
• a cart
• separate totals for ‘in cart’ and ‘on list’
• item info including: name, category (sort-per-store) and / or aisle, note, store, per-store-price, photo

I haven’t made my mind up about coupons / discounts, because I rarely use them. However, when I do, I like them showing up in the price.

I’d also like to make it so that the lowest price has a visual feedback if you have selected a store — something Handyshopper always did very well. I want the interface as clutterfree as possible, and from what I can tell, I have some pretty good options with the default iPhone thingies.