Anytype

Tested Anytype over four weeks building a personal knowledge graph plus a small team workspace for three project collaborators. Baseline was Tana for the typed-knowledge angle and Obsidian for local-first markdown. Specifically wanted to validate the local-first encrypted sync, the object-type system, and end-to-end encryption claims against Tana and the broader Notion-alternative landscape. Roughly 1,400 objects created across both workspaces during the test window.

Local-first architecture with end-to-end encryption is the headline feature and it actually works - data stays on device, sync is peer-to-peer through Any-Sync, and the privacy story is genuinely the strongest in the productivity-tool category. Object types and relations gave the knowledge graph genuine structure without the steep Tana learning curve - templates for person, project, meeting, and book worked out of the box. Offline mode is real and seamless, unlike Tana or Notion. The interface stayed snappy even at 1,400 objects, faster than Notion at equivalent scale. Free tier is generous - 1 GB of synced data covers most personal use.

AI features are essentially absent compared to Tana or Notion AI - no synthesis across objects, no AI-assisted summarization, no GPT-style query interface. Multi-device sync occasionally lagged by 30 to 90 seconds after edits, requiring a manual refresh. Collaboration features in shared spaces are bare-bones - no rich commenting, no inline mentions, no live cursors. Web app is missing several desktop features, and there is no public sharing equivalent to Notion sites. Search across object relations is functional but slower than Tana once past 1,000 objects. Documentation and community resources are thin compared to Notion or Obsidian.

Best for privacy-conscious individuals and small teams who want a structured knowledge graph with local-first guarantees and zero-knowledge encryption. Tana remains the right pick when AI-augmented synthesis across typed nodes is the actual job. Obsidian still wins on raw markdown ergonomics and plugin ecosystem. Notion fits collaborative teams who treat docs as the primary artifact. Pick Anytype when ownership and privacy of knowledge data outweigh AI features.