Problem

Heptabase addresses the difficulty of learning, researching, and synthesizing complex information when ideas, sources, highlights, and project notes are scattered across PDFs, webpages, media, notebooks, and other tools. The pain is primarily cognitive and time-based: students and readers need to turn large volumes of material into connected understanding, while researchers, founders, and project leaders must make sense of literature, data, and ideas well enough to make better decisions and produce stronger outcomes.

Its main use case is turning intensive reading or research into a usable mental model. A student can organize course material for review, an academic can synthesize literature and research logs, and a project leader can connect planning, domain knowledge, and evidence in one workspace rather than repeatedly reconstructing context from fragmented notes.

Product / Service

Heptabase is a subscription software product positioned as an intelligent, visual knowledge base. Users capture information from PDFs, YouTube, webpages, eBooks, and other sources, annotate and highlight it, then arrange notes and ideas as cards on whiteboards. Bidirectional links, integrations such as Readwise and Zotero, a web clipper, journals, and a block-based editor help connect source material into a persistent knowledge base.

The product combines visual organization with AI assistance: users can ask AI to explain sources, take notes, and organize their knowledge, while the AI Tutor provides structured, personalized learning sessions. The benefit is a workflow that moves from capturing material to organizing it, clarifying relationships, discussing or writing about it, and applying the resulting understanding to learning and research goals.

Market

Heptabase competes in visual note-taking, personal knowledge management, and research and learning software. Its closest alternatives include other visual knowledge and whiteboard-oriented tools such as Affine, Scrintal, Kinopio, Mymind, and Milanote, while broader note-taking products such as Obsidian can overlap with its knowledge-management use cases. Heptabase differentiates around complex-topic learning and research rather than general-purpose note storage.

The company is not pre-revenue: it sells recurring subscriptions, with plans listed at $8.99, $17.99, and $53.99 per month, and its pricing page says it is trusted by customers from leading universities. Founded in September 2021, Heptabase reports nearly $1.7 million in seed funding from investors including Y Combinator, HOF Capital, Kleiner Perkins, and Moving Capital, but says it has been cash-flow positive since its first year, has funded expenses from revenue, and generated 90% of its growth organically. This suggests early traction with a relatively capital-efficient, subscription-funded business, although the available evidence does not disclose customer counts or revenue.