✔Recommended Applications:
Writing: noteshelf, pdf expert, oneNote, noteshelf, GoodNotes, UPAD3, Notes Plus, Notability, etc.
Drawing: ArtRage, Procreate, Sketches, Paper, SketchBook, ArtStudio, Zen Brush, etc.
Apps for Android:
Writing: Meta Moji Note, Notepad+, Bamboo Paper, etc
Drawing: Autodesk, SketchBook, ArtFlow, Painter, Design, Zen Brush, etc.