Side-by-side comparison of two listed Productivity tools — real listing data only, no paid placement.
On record, they differ in: pricing (Roam Research Paid vs Capacities Freemium); unique tags (Roam Research 1: #networked-thought vs Capacities 1: #objects). Same category (Productivity). Listing facts only — not a recommendation.
The note-taking tool that popularized bidirectional linking
Roam is a networked thought tool: every note is an outline whose blocks link and embed anywhere else, building a graph of your thinking. It sparked the modern wave of connected note-taking apps.
Published 2026-08-06 · Links checked 2026-09-16
Object-based note-taking that organizes itself
Capacities structures notes as typed objects — people, books, meetings, ideas — that interlink automatically into a networked knowledge base with daily notes, calendar context and AI assistance.
Published 2026-08-06 · Links checked 2026-09-16
| Roam Research | Capacities | |
|---|---|---|
| Pricing | Paid | Freemium |
| Category | Productivity | Productivity |
| Rank in Productivity | not in top 50 of 77 | not in top 50 of 77 |
| Alternatives listed | 11 → | 11 → |
| Shared tags | #notes #pkm | |
| Unique tags | #networked-thought | #objects |
| Platforms | Web app (installable) | Not detected on official site (checked 2026-09-17) |
| Pricing page | Not detected on official site (checked 2026-09-17) | Official pricing page |
| Free trial | Not detected on official site (checked 2026-09-17) | Mentioned on the official pricing page |
| Documentation | Not detected on official site (checked 2026-09-17) | docs.capacities.io/ |
| Company | Not detected on official site (checked 2026-09-17) | Capacities |
| In their own words | As easy to use as a word document or bulleted list, and as powerful for finding, collecting, and connecting related ideas as a graph database. Collaborate with…— official site (homepage description), checked | Capacities is a note-taking and knowledge management app that organizes your ideas as connected objects instead of files and folders. Available free on Mac…— official site (homepage description), checked |
| Official channels | — | X (Twitter)YouTubeDiscordRedditInstagramdeclared on capacities.io via schema.org sameAs |
| Official website | roamresearch.com | capacities.io |
| Site preview | ||
Rank = neutral rotation by listing ID, not a quality score · how it works
Only platforms with an official store or installer link are listed; others may exist.
Roam Research is Paid; Capacities is Freemium. Both are listed in Productivity on ToolDock.
Roam Research is listed as paid — no free tier on record; Capacities is listed as freemium (free tier alongside paid plans). Pricing label set at listing time; official pricing page linked where verified — see each official website for current details.
Both are Productivity tools listed on ToolDock, and they share the tags notes, pkm.
ToolDock keeps a tag-matched alternatives list for each: see Roam Research alternatives and Capacities alternatives.