Grocery Manager 

Grocery Manager allows you to smartly manage your Grocery Shopping. Most innovative feature of this app is that it has an Automatic Shopping list which will contain all the items you need to shop for on any particular day. This is done based on a combination of your input, where you enter how many days particular item last in your household and the buffer days settings which app asks on first run. Buffer days are the no. of days before the item is included in the shopping list before it ends.