Heptabase

Heptabase is an intelligent visual workspace designed for researchers, students, and serious learners tackling complex topics. If you spend your days analyzing academic papers, books, and lecture videos, its spatial whiteboards, card databases, and AI tutor justify the cost. However, casual note-takers should pass: there is no true free tier, and subscription fees add up quickly.

Visual Research in a Real Workday

Rather than confining notes to linear documents, Heptabase organizes knowledge across whiteboards and modular cards. In daily work, you can annotate PDFs (up to 350MB or 3,000 pages), transcribe YouTube videos, clip web pages, and sync highlights from Zotero or Readwise. Its AI Tutor offers a guided curriculum that adapts to your pace, converting lessons into whiteboard notes. For technical users, the Heptabase CLI and Model Context Protocol (MCP) server allow external tools like Claude Code to inspect and edit boards directly.

Recent updates show rapid iteration, adding Gemini 4 Argon support on October 16, 2026, and whiteboard smart guides on October 29, 2026. For lightweight mind mapping, Mapify is quicker, while NotebookLM remains a focused option for document queries. Heptabase wins when you need a persistent, interconnected knowledge base.

Pricing, Credits, and the Real Catch

Heptabase is essentially a paid product. The 7-day trial auto-converts to a paid subscription unless cancelled. A free plan exists only if a paying subscriber invites you as a collaborator, but guests cannot access personal libraries, journals, tags, tasks, highlights, or AI features. The help center also mentions a “Free AI Tutor plan” with a one-time credit grant that does not reset, without saying how large it is.

Monthly AI credits do not roll over. If you run out, only paid subscribers can enable pay-as-you-go usage under a monthly spending cap. If you cancel, your notes remain accessible to view and export indefinitely, but you cannot edit or create new cards. Refunds are available within 14 days minus used credits, though the help center notes active usage may prevent full refunds, so check the terms.

Data Privacy and Model Isolation

Heptabase processes and stores personal data on US servers. Under Hepta Platforms’ provider agreements with OpenAI, Anthropic, and Google, user content is not used to train AI models. PDF parsing and AI suggestions run on models Heptabase hosts itself on Runpod infrastructure, and are not sent to those providers. However, this no-training promise does not apply if you bring your own API keys or connect personal accounts, where third-party terms govern.

The Arabic-User Test

The vendor does not state support for Arabic or right-to-left (RTL) text, offering help resources solely in English and Traditional Chinese. Before committing, test it yourself during the 7-day trial:

• Bidirectional text: Write a mixed Arabic-English card to verify line-ending punctuation and alignment.
• PDF parsing: Upload a scanned Arabic PDF to check OCR text extraction.
• AI Tutor: Ask the AI Tutor to summarize an Arabic lecture.
• Search: Search for Arabic terms with and without the hamza to see if matching works.

Who Should Skip It

Skip Heptabase if you want a frictionless personal wiki without ongoing software fees, or if your team expects full-featured free collaboration. Apps exist for Mac, Windows, Linux, iOS and Android, so platform is rarely the reason to skip it; price is.

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