CollaNote

Noteful is a digital note-taking and annotation app optimized for handwriting on iOS devices that blends fluid pen input with powerful document tools. You can write naturally using Apple Pencil or touch input; its custom ink engine records strokes as scalable vector ink, and you can switch between three brushes (ballpoint, fountain, highlighter), sizes, and colors. Beyond handwriting, Noteful supports importing PDFs and Office documents, annotating with typed text, images, and shapes, and layering multiple paper templates within a single notebook. Notes can be organized flexibly via hashtag tagging (including nested tags), rather than rigid folder structures, and you can browse content by tags or pin important pages. It offers a layer system so you can annotate without altering base content, hiding or reordering layers as needed. Editing tools include a precise eraser, lasso selection for moving or resizing content, unlimited undo/redo, and split-view multitasking.

Goodnotes is an AI-powered digital note-taking and productivity platform that enables users to create, organize, annotate, and collaborate on handwritten notes, documents, and whiteboards. The software provides a natural handwriting experience with support for digital pens, text conversion, searchable handwriting, and customizable notebooks. Users can import and annotate PDFs, create typed documents, record audio, and organize information into folders and reusable templates. Goodnotes AI helps users summarize notes, answer questions about documents, generate mind maps, and convert meeting discussions into actionable plans. Its collaboration features allow multiple users to edit shared notebooks, documents, and whiteboards in real time across supported devices. Goodnotes is available on iPad, iPhone, Mac, Windows, Android, and the web, with features and synchronization capabilities varying by platform and subscription plan.