Overview

Tana launched in beta in 2023, is headquartered in San Francisco, United States, with a team split between the US and Denmark, and is a new-generation structured AI note-taking and knowledge management tool in the productivity tools space. Built around "Supertags," it unifies notes, tasks, and database capabilities at node-level granularity: every piece of information can define fields, relations, and views, freely switching between free-form notes and structured data.

Tana's differentiator is "AI-native plus structure": Tana AI automatically summarizes, extracts, and fills content according to Supertags, converting unstructured material such as chat logs, meeting notes, and web clippings into queryable data, while the Daily Journal captures tasks, schedule, and notes in one place. Around this core, Tana integrates with Todoist, Google Calendar, and other tools, making it a popular choice for building a "second brain" and personal knowledge base. As the core product of the Tana company, it is still under continuous iteration.

Key Strengths

  • Supertags structuring: Define fields, relations, and views at the node level so notes can be upgraded into databases on demand, balancing free-form recording with structured queries; see enterprise knowledge base setup.
  • Tana AI auto-extraction: AI summarizes, extracts, and fills structured content, cutting organizing time for unstructured material by about 50% and lowering knowledge base maintenance cost.
  • Daily Journal workflow: A daily record captures tasks, schedule, and notes in one view, with Todoist and Google Calendar integrations forming a daily loop.
  • Free plan to start: A free plan covers core capabilities, with paid subscriptions around $10-15/month, keeping the entry barrier low.
  • Unlimited nesting and graphs: Unlimited nested nodes and graph browsing suit complex personal knowledge systems.

Product Ecosystem

Supertags

The core structuring unit: define field, relation, and view templates for any node, quickly upgrading scattered notes into structured data.

Tana AI

Built-in AI summarization, information extraction, and structured filling convert chat logs, meeting notes, and web content into structured nodes in batches.

Daily Journal

A daily record view that aggregates the day's tasks, schedule, and notes, with Todoist and Google Calendar integrations for automatic capture.

Integrations Hub

Connects tools such as Todoist, Google Calendar, and Readwise, bringing external tasks and reading content into the knowledge base.

Graphs and Search

Graph browsing over unlimited nested nodes and full-text search help quickly locate information in large knowledge systems.

Limitations

  • Early-stage product: Frequent feature iteration with collaboration, mobile, and plugin ecosystems still maturing, so stability remains to be observed.
  • Steep learning curve: Supertags and the field system introduce novel concepts that require time to understand, with higher onboarding cost than traditional notes.
  • Web-dependent usage: Primarily browser-based with limited offline capability and a weaker mobile experience than native apps.
  • Smaller ecosystem: Templates, third-party integrations, and community resources are fewer than mature products such as Notion.

Use Cases

  • Structured knowledge management (★★★★★): Supertags plus AI extraction suit building a personal knowledge base and second brain; see enterprise knowledge base setup.
  • Researchers and analysts （★★★★☆）: Consolidate literature, interviews, and data as structured nodes with AI-assisted synthesis; see the productivity tools collection.
  • AI workflow explorers （★★★★☆）: Tana AI auto-extraction and structured filling suit exploring AI-native knowledge management.
  • Teams needing mature collaboration and ecosystems （★★☆☆☆）: Consider Notion or Obsidian.

Pricing

Plan Price Core Features
Free $0 Core Supertags and notes, Daily Journal, basic AI capabilities
Individual ~$10-15/month Enhanced AI quota, more nodes, and advanced features
Team/Enterprise Custom Team collaboration, management, and compliance features (rolling out)

Note: Prices are reference levels from the official website. The product is still in beta, and plans and pricing may change. Please refer to the official site.

FAQ

  • How does Tana differ from Notion and Obsidian? Tana emphasizes Supertags structure plus AI-native workflows for data-driven knowledge management; Notion excels at database and collaboration in one platform, while Obsidian is local-first linked notes. For choosing among them, see the document collaboration platform comparison.

  • What are Supertags? A reusable structured template that defines fields, relations, and views, upgrading any note node into a database record, and the core mechanism that sets Tana apart from traditional notes. See enterprise knowledge base setup for usage.

  • What can Tana AI do? It supports automatic summarization, information extraction, and structured filling, converting unstructured content into structured nodes in batches and cutting organizing time by about 50%; more AI productivity tools are in the productivity tools collection.

  • Does Tana have a free version? Yes. The free plan covers core Supertags, notes, and Daily Journal; upgrading to around $10-15/month unlocks higher AI quota and advanced features, making it a cost-effective choice in the productivity tools category.

  • Is Tana suitable for teams? Team collaboration is still maturing, so it currently suits individual knowledge management; for mature team collaboration, evaluate products such as Notion, and see the remote team toolchain.