Heptabase: Offers superior visual whiteboarding and spatial structuring for complex research, but lacks Capacities' typed object database system. Capacities records 339,396 monthly visits with +5.7% month-over-month growth and Freemium, Paid pricing. Heptabase records 179,905 monthly visits with -5.8% growth and Free Trial, Paid pricing.
A studio for your mind: object-based notes that stay connected
A visual knowledge base that turns scattered sources into a worldview you can build on
| Dimension / Metric | | |
|---|---|---|
| Official Domain | capacities.io | heptabase.com |
| Pricing Model | Freemium, Paid | Free Trial, Paid |
| Monthly Visits | 339.4K (339,396) | 179.91K (179,905) |
| MoM Traffic Delta | +18.16K (+5.7%) | -11K (-5.8%) |
| Primary Market & Share | 🇺🇸 United States (29.5%) | 🇹🇼 Taiwan (44.5%) |
| Direct Visits / mo | 249.6K | 97.77K |
| User Rating | 4.5 | 4.6 |
| Supported Platforms | Website | Website |
A studio for your mind: object-based notes that stay connected
Model people, books, projects and meetings as typed objects with their own properties, instead of forcing them into folders.
See every link to a note at a glance, and let Capacities surface unlinked mentions where you already wrote about the same thing.
Capture thoughts without deciding where they belong first, then link and refine them later.
On paid plans, an AI assistant works alongside your notes, and image, PDF and weblink analysis turns outside material into usable content.
A visual knowledge base that turns scattered sources into a worldview you can build on
Split PDFs, web pages, YouTube videos, podcasts and Readwise or Zotero items into cards and read deeper through every citation.
Turn any goal into a personalised course and process readings with AI help before arranging ideas on the board.
Give your knowledge a structure that can be reworked as you learn, using nested tags and properties rather than flat folders.
Query your knowledge base from Claude Code, ChatGPT, Codex or Grok Bot through the plugin, MCP server and CLI.
SpecialistAn AI-powered visual workspace where teams think, plan, and build together
SpecialistAn AI-powered visual workspace where teams think, plan, and build together
SpecialistThe collaborative whiteboard built for product builders
SpecialistMap the literature around the papers you love—free
SpecialistMap the literature around the papers you love—free
Delivers a cleaner document editing experience with beautiful typography, but lacks network graph views and typed object modeling.
Delivers a cleaner document editing experience with beautiful typography, but lacks network graph views and typed object modeling.
Pairs a spatial visual canvas with multi-model chat agents, offering a more agentic research experience than Heptabase.
Pairs a spatial visual canvas with multi-model chat agents, offering a more agentic research experience than Heptabase.
Combines an infinite canvas workspace with an integrated AI assistant to organize projects and generate boards.
Combines an infinite canvas workspace with an integrated AI assistant to organize projects and generate boards.
SpecialistTransforms diverse study materials like PDFs and videos directly into interactive concept maps and flashcards.
SpecialistTransforms diverse study materials like PDFs and videos directly into interactive concept maps and flashcards.
An offline-first visual note-taking app on an infinite canvas with built-in AI summarization tools.
An offline-first visual note-taking app on an infinite canvas with built-in AI summarization tools.
SpecialistADHD-friendly AI assistant for notes, email and tasks
SpecialistADHD-friendly AI assistant for notes, email and tasks
SpecialistYour files, notes and meetings in one drive — with an AI that knows all of it.
SpecialistYour files, notes and meetings in one drive — with an AI that knows all of it.
SpecialistAn AI notes app that organizes your knowledge for you
SpecialistAn AI notes app that organizes your knowledge for you
Focuses specifically on scholarly literature research, organizing academic sources into mind maps and draft reviews.
Focuses specifically on scholarly literature research, organizing academic sources into mind maps and draft reviews.
