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Knowledge Graph & Personal Knowledge Management (PKM) · Vendor file

tana

tana.inc

Node-based PKM where every item is a structured object with supertags and AI features

Active · verified June 2026

Categories tana serves

The B4 Index places tana in one category. Each category page lays out the build-versus-buy considerations for that decision.

Knowledge Graph & Personal Knowledge Management (PKM) Per-user/month ~$14/user/month Business
The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to classify it Build, Buy, Bridge, or Beware. Vendor facts here are independent of that call. See the full methodology.