xournal - Lightweight notetaking and sketching app.
Kdan Mobile Animation Desk - Achieve your dream of creating your own animation.
GoodNotes - GoodNotes lets you take notes and annotate PDF documents.
Stickman: Draw animation - Stickman: Draw animation is an animation editing tool that allows you to create your own animated movies in a few minutes.
Stylus Labs Write - Write is a word processor for handwriting, designed primarily for tablets with an active stylus.
ibis Paint X - Drawn with + ibisPaint