Heptabase vs Roam Research: pricing, features and which to choose

Heptabase is made by Hepta Platforms, Inc. and is an actively developed visual knowledge-management service. Its focus is research and learning rather than general project management. The product combines reusable cards, PDFs, journals, databases, tags, research imports, AI chat, and agent workflows. Desktop storage has local-first and offline behavior, while optional cloud sync works across unlimited devices. Mobile supports capture and reading. Heptabase is proprietary software, not an open-source project, and its hosted design means cloud processing remains part of the service even when one device holds a local database. The company describes its early-bird offer as ending on August 31, 2023, with version 1.0 launching at that time.

A typical Heptabase workflow starts with PDFs, web or video content, notes, and highlights. Documents can be parsed or processed with OCR, after which selected passages become reusable cards. Users arrange cards on nested whiteboards, connect them with tags, and search the resulting knowledge base. Cards can appear on multiple boards, which suits projects that revisit the same source material. AI Tutor, chat, transcripts, Insight Generator, and voice-note features add assistance around collected material. Users can publish or share selected spaces. PDF extraction creates text for AI, including scanned text through OCR, but it does not automatically create highlight cards. Users must select passages when they want highlight cards.

Heptabase's main tradeoff is cost and service dependence. Premium and Premium+ meter AI work through monthly credits, there is no end-to-end encryption or supported self-hosted Heptabase server, and server-side indexes contain content chunks, metadata, and vectors. Obsidian offers local Markdown and optional Sync, while Heptabase provides a stronger built-in PDF, card, and whiteboard workflow. Scrintal is stronger for real-time collaboration, templates, and tablet ease, while Heptabase is more research-focused. Notion is better for team databases and project management. Logseq offers an open-source, outliner-oriented alternative with stronger local ownership. Pick Heptabase if spatial source synthesis matters more than local ownership or low subscription cost.

Roam Research helped make bidirectional links and block-based outlining popular in note-taking, and many later tools, including Logseq and Obsidian's linking features, are often compared with it. It was created by Conor White-Sullivan and is built for researchers, writers, founders and students who think by connecting ideas rather than filing them into folders. Instead of a hierarchy of documents, Roam is a graph of pages and blocks. You write in an outliner, wrap any phrase in double brackets to create or link a page, and every page shows the linked and unlinked references pointing to it. Over months, that reference list becomes a record of how an idea developed.

The block is Roam's core unit. Each bullet has its own identifier, so you can reference or embed it in another page and edits show up everywhere it appears. The daily notes page opens each day as a default place to write, which removes the decision of where a thought belongs. Tags, attributes and queries pull blocks from across the graph into one view, and a graph view shows how pages connect. Roam also supports to-dos, kanban and table views, a sidebar for working on several pages at once, version history for blocks and keyboard-driven navigation. Graphs can be private, encrypted or shared with collaborators for team use.

Roam Research's strengths are block references and embeds that work across the whole graph, a daily notes workflow that lowers friction, powerful queries and an extension system with Roam Depot and roam/js. Its weaknesses are the lack of a free plan, a higher price than rivals, a learning curve for queries and attributes, and AI that depends mostly on extensions and your own API keys. Logseq offers a similar outliner for free. Obsidian stores Markdown files locally. Tana adds structured supertags and built-in AI. Notion suits shared docs and databases. Choose Roam if you want block-level linking and already think in outlines.