The Smart Shopping List allows you to automatically add items after a specific time. For example, you can configure it to add milk to your shopping list 4 days after you last bought it.

This way you will never forget items you need often. But it is also useful for items you only need every few weeks such as toothpaste or washing powder.

The user interface is very simple and easy to use.

To use all the premium features you can buy the Pro version with in-app purchases.
You can choose between a monthly / yearly subscription or a one time purchase, which give you unlimited access to all pro features.

Terms of service: https://devno.com/smartshoppinglist/tos-smartshoppinglist.pdf