Capacities

Capacities is a studio for thinkers that reimagines personal knowledge management around objects rather than files. Instead of trees of folders or flat notes, every piece of information in Capacities — a person, book, meeting, project, idea, or quote — is a typed object with its own properties, templates, and relationships. The app combines this object-oriented model with daily notes, full-text search, a powerful block-based editor, and an AI assistant that can search across your entire space, summarize content, draft new objects, and chat with your knowledge. Capacities ships polished native apps for Mac, Windows, Linux, iOS, and Android with reliable sync, plus a web app for quick access. The default object library covers everything most knowledge workers need (notes, people, books, articles, podcasts, tasks, meetings, queries), and power users can create custom object types. PDF annotation, web clipper, audio transcription, and table views round out the feature set. The product is positioned as a serious alternative to Notion, Obsidian, and Roam — especially for people whose brains naturally organize information by type rather than hierarchy. Pricing offers a generous free tier with most features, a Pro plan with AI access and unlimited objects, and a Believer lifetime plan.