5 tools
NotePlan is a productivity app that combines task management, note-taking, and calendar features into a single integrated solution, helping professionals reduce app switching and build efficient, reliable workflows and knowledge systems.
Starnote AI is an AI-powered notes and PDF editing app designed for Android tablets. It helps you efficiently record, organize information, annotate documents, and plan personal journeys, boosting knowledge management.

MyMemo AI is an AI-powered personal knowledge management platform that helps users efficiently capture, organize, and retrieve information, building a structured personal knowledge base to tackle information overload.
Dessix is an intelligent note-taking and knowledge management platform focused on human–AI collaboration. By visual context management, it enables deep thinking with AI, helping users efficiently process information, spark insights, and complete creative work.

ChatGPT Notebook is a free online plain-text editor that automatically cleans formatting artifacts copied from AI tools, providing a clean and efficient way to capture and organize notes.