On the main page, you can see and manage the list that you left in the drop-down list when you last logged out. You can add a new item using the input field or the microphone button, which will be added to the list by pressing the lower plus button. The item checked in the box is placed at the bottom of the list. The selected items can be permanently deleted from the list using the trash can button in the top row. All items can be selected with the check mark above. You can switch a list with the drop-down list, share the current list with the share button. Use the pencil button in the upper left corner to switch to the Manage Lists page.
On the Manage Lists page, you can add a new list - plus button -, edit it - long press on the list name - and delete it. The first list will always be selected on the main page, which cannot be deleted.