Capacities Review: Complete Guide 2026

Capacities describes itself as a studio for your mind, and that framing tells you a lot about what separates it from the crowded field of note-taking apps. Rather than organizing information in flat documents or folders, it treats everything you capture — a book, a person, a project, a meeting — as a distinct object with its own properties and relationships. This object-based approach is genuinely different from how most productivity tools work, and for the right kind of thinker, it clicks in a way that conventional apps simply never do.

The platform emerged as part of a broader wave of second-brain tools that gained momentum in the early 2020s, drawing inspiration from concepts like Zettelkasten and the Building a Second Brain methodology. What set it apart from contemporaries like Notion or Obsidian was its insistence on a more structured, type-aware knowledge model. Instead of every note being a blank page, you define what a thing is before you capture it, and the app builds connections accordingly. Bidirectional linking, a knowledge graph, daily notes, and calendar views all reinforce this connected-thinking philosophy.

In a productivity landscape that can feel exhausted by feature bloat, Capacities bets on clarity and coherence. The design is genuinely clean, the free tier is surprisingly generous — offering unlimited notes, objects, and device sync with 5GB of media storage — and the development team has maintained a steady pace of iteration. As of 2026, the Pro tier runs $9.99 per month on an annual plan or $11.99 month-to-month, which is a reasonable ask for what you get, including an AI assistant and unlimited media storage.

This is not a tool trying to be everything to everyone. It is opinionated software built around a specific vision of how knowledge should work, and that focus is both its greatest strength and the thing that will make it a poor fit for some users. If you have ever felt like your notes are an unsearchable pile rather than a living system, this is the kind of tool worth taking seriously.

Consider a UX researcher who interviews dozens of participants across multiple studies and struggles to connect themes across projects over time. In Capacities, each interview subject becomes a Person object, each study becomes a Project object, and insights pulled from transcripts are tagged and linked to both. When starting a new study on a related topic six months later, the knowledge graph surfaces relevant people and prior findings automatically. This is not just organizational tidiness — it changes how research actually compounds over time, turning isolated documents into a retrievable body of knowledge.

A freelance science writer juggling articles, sources, and subject-matter experts faces a similar challenge. With object-based notes, a Source object can be linked to every article draft that cites it, every Expert object who mentioned it, and every Topic object it relates to. Daily notes become a lightweight journal for capturing stray ideas that automatically thread back into the broader system through backlinks. The calendar view provides a simple editorial rhythm without requiring a separate planning tool, keeping research, drafting, and publishing all in one connected workspace.

Graduate students writing a thesis represent perhaps the most natural fit. Someone working through a two-year literature review needs to track hundreds of papers, authors, arguments, and their own evolving thinking — all of which needs to stay retrievable and connectable rather than buried in a folder of PDFs and half-finished summaries. The built-in templates accelerate setup, the Markdown support makes academic formatting painless, and the second-brain structure means that ideas developed in year one are genuinely accessible and useful in year two. These are solo, text-heavy, intellectually intensive workflows, and that is exactly where this tool performs at its best.

The free tier is one of the more honest in this category. You get unlimited notes, unlimited objects, unlimited blocks, unlimited spaces, and device sync without hitting a paywall, plus 5GB of media storage. The main limitation is the absence of AI features, but for users building a purely text-based knowledge system, the free plan is genuinely functional and not a stripped-down teaser. Many serious users could realistically stay on it indefinitely if AI assistance is not a priority.

The Pro plan is where the full experience unlocks. At $9.99 per month billed annually — or $11.99 if you prefer monthly billing — it adds the AI assistant, unlimited media storage, and priority support. The Believer tier sits at $12.49 per month annually ($14.99 monthly) and includes everything in Pro along with additional project support, though the practical difference for most individuals is modest. There are no team plans as of 2026, and no lifetime deal options, which is worth noting if you are hoping for either.

Compared to its closest competitors, the pricing lands in the middle of the market. Tana's Plus plan runs around $8 per month, making it slightly cheaper for users who want a similar object-based experience. Amplenote's Pro tier comes in around $5.84 per month on an annual plan, which is noticeably more affordable, though its feature philosophy is quite different. Capacities Pro at $9.99 annually is a fair price given the free tier's generosity — you are not being pushed toward a paid plan, which makes the upgrade feel like a genuine choice rather than a necessity. For heavy media users or anyone who wants AI-assisted writing and organization baked into their workflow, the cost is easy to justify.