In the digital planner vs paper planner question, neither format wins outright. Paper is better for recall, for speed in short bursts, and for staying off a screen. Digital is better for search, for carrying years of pages at once, and for cost over time. Which one...
To use a digital planner on a tablet, you import a hyperlinked PDF into an annotation app like GoodNotes, Notability or Noteshelf, open it in a notebook of its own, and write on the pages with a stylus or type into them with the keyboard. That is the whole mechanism....