People usually land here after trying to make Notion, Obsidian, Linear, or Asana remember project history — a page per project, a running log, a decisions database. It works until the upkeep becomes its own task. ContextOS is purpose-built for that one job: sessions, decisions, resources, ideas, and a single next action per project, with an AI resume briefing when you come back.
These pages give the honest split for each tool: what it does better than ContextOS, what ContextOS does instead, and when you'd use both.
Only for one job: project memory. Those tools handle docs, notes, issues, and team tasks; ContextOS replaces the part where you tried to make them remember project history.
No. Most builders keep their existing stack and add ContextOS as the memory layer — sessions, decisions, resources, and a single next action per project.
Pick the tool you're currently bending into a project log. Each page covers what that tool does well, what ContextOS does instead, and when to use which.