Heptabase vs Logseq: 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.

Logseq began in 2020 as an open-source project and grew into one of the best-known privacy-first alternatives to Roam Research and Obsidian. Its GitHub repository has more than 45,000 stars, and its code is licensed under the AGPL. A small core team, about four people according to its forum, builds the app with community contributors, and it is funded partly through Open Collective sponsorships. Logseq attracts students, academics, writers, researchers and software developers who think in outlines and want notes that link together without handing their data to a cloud service. It runs on Windows, Mac, Linux, iOS, Android and the web.

Everything in Logseq is a block in an outline. You write in a daily journal by default, then link ideas with [[page]] references or #tags, and backlinks show where every page is mentioned. Blocks can be embedded or referenced elsewhere, so one idea can appear in many contexts. Built-in features include tasks with TODO and NOW states and scheduled dates, queries that pull blocks matching conditions, a graph view, whiteboards for spatial thinking, flashcards with spaced repetition and PDF annotation that links highlights back into notes. The original version stores pages as Markdown or Org-mode files in a folder you choose, so other tools can read them.

Logseq's strengths are its open-source license, local-first storage, powerful block references and queries, built-in journals, flashcards and PDF annotation, and a path to AI through MCP and plugins. Its weaknesses are a long transition to the DB version, beta-quality features, a slower release pace than commercial apps and a learning curve for queries. Obsidian has a larger plugin library and file-based notes, but is not open source. Roam Research pioneered the block outliner as a paid service. Tana and Capacities add structured objects and built-in AI. Notion suits team wikis. Choose Logseq if you want a free, open-source outliner that keeps notes on your own device.