Commonality -- Note-taking + Agentic AI [OpenNote](https://www.opennote.com/) -- Note-taking / Learning Experience Focused [Copilot for Obsidian](https://www.obsidiancopilot.com/en) -- Obsidian + Chat/Agent [Lightpage](https://lightpage.com/) -- Journal + Chat + Contextual Understanding/Agentic suggestion [Poly](https://poly.app/) -- File management system reimagined with AI