Capacities, built by Capacities Labs, takes a more structured approach to personal knowledge management than purely freeform, block-based notes apps: content gets organized into defined object types, a book, a person, a daily note, each with its own specific properties, rather than every note living as an identical generic block regardless of what it actually represents.
That structured-object approach matters for anyone whose knowledge base grows large and messy over time in a purely freeform tool: a "book" object can consistently track author and rating fields, while a "person" object tracks how you know them, structure that emerges automatically from the content type rather than being manually recreated in every new note.
A free tier covers standard use, and paid plans start around $12 a month for more storage and features. For someone who wants their notes to carry real, consistent structure based on what kind of thing each note actually represents, rather than a fully freeform block editor, Capacities' object-typed approach addresses that specific organizational need directly.
