I love the ease of use of adding items to my ‘cart’ (PRO) I love that it will sync across devices (PRO) I am baffled and disappointed that you can’t sync your categories and custom items across devices UNLESS they share an iCloud account. (CON CON) Use case: I set this up because my wife is ill and can’t type very well and is unable to get out of the house. This was going to help her create a shopping list that I can pick up on my way home from work. However, after painstakingly building a custom list of potential items on my devices, I learned that it wouldn’t sync with hers. The only thing that syncs is the actual shopping list. Therefore, I had to recreate my custom configuration on her device. With a small change, this app would be 5 stars - make everything sync, not just the items in your cart.