This app can help you manage the content of your fridge or any other room where you have some content.
Create new lists by clicking the blue plus button. Give your list a name. Then click the created list, to get to the actual content of the list. Here you can add new entries to the list by clicking the blue plus button. Each list entry has a color marking. This marking you can toggle to indicate if you have the item or not. Then you can click the button named buy and you will see a list of what you need to buy. When you go to the grocery store you can toggle the status of each item as you put the items in your bag. Then you have an easy overview of your progress in finding groceries.