Evernote is a note taking app and productivity tool for capturing, organizing, and prioritizing ideas, projects, and to-do lists using AI features.

Obsidian is a free and flexible knowledge base app for private thoughts, using local Markdown files and featuring thousands of plugins for customization.

Roam Research is a networked thought and note-taking tool that combines the simplicity of bulleted lists with the power of a graph database for idea connection.

Reflect is a beautifully minimalist, end-to-end encrypted note-taking app designed for networked thought and enhanced by native GPT-4 AI integration.

Noteshelf is an award-winning note-taking app for iPad, iPhone, Mac, and Android, featuring AI handwriting and PDF annotation.