Hi J.D.,
we used the app “Sorted” (https://itunes.apple.com/us/app/sorted-master-your-day/id1022256487?mt=8). Other apps that support this feature are for example iA Writer, Things 3, or Todoist. Which ones did you try?
Written by GoodNotes
We’re the makers of GoodNotes. We help people note down, shape and share their ideas with the world’s best-loved digital paper.