Personal Productivity platforms serve the individual knowledge worker's workflow — task capture, note-taking, calendar blocking, and personal knowledge management — distinct from team collaboration or project management. Core capabilities include unified task and notes capture, recurring task scheduling, calendar integration and time-blocking, hierarchical or graph-based note organization, cross-device sync, lightweight sharing for small groups, and increasingly AI-powered summarization and task inference. The category sits alongside the productivity suite rather than replacing it — the suite handles email, docs, and team collaboration while personal productivity tools handle individual planning and knowledge.