You can manage your Alexa shopping list on several different to-do list apps, but the app that we use in our family is Todoist.
Todoist works on all devices, and it will help you keep track of everything. Your shopping list and the to-do list that you make with Alexa will show up in your Todoist app.
To get started, download Todoist and open up an account with them. You only need the free option of Todoist for your list to appear.
At this point, you should have already set up your account, so now we can go through the steps of linking it up to Amazon.