By integrating the PDF/EPUB reader and multiple powerful study tools, MarginNote will enable learners to reorganize and connect knowledge from different aspects, then memorize and grasp it accordingly. This is a highly powerful reading and study software and is applicable to Mac, iPad, and iPhone. Integrating powerful tools for book annotation, mindmapping, flashcards and more, to build up your reading notes as never before. What does MarginNote 3 do? MarginNote 3, all brand new e-reader to better study and digest your books