We recommend using our digital planners in the GoodNotes app via an iPad/tablet for best ease of use. These files are also compatible with any other note taking apps (Notability, PDF Pro, Xodo, *OneNote, and more!) and can be used on a desktop, laptop, and/or mobile devices as well. *Please note that OneNote will deactivate the automatic hyperlinks in the pdfs and you will have to re-create them yourself.