Brainstream is an AI-powered note-taking application designed to serve as your second brain. It helps users capture thoughts, find connections between ideas, and take action using artificial intelligence that understands their content.

The app includes Brain Chat for interacting with notes through natural conversation, Voice Notes with instant AI transcription, Semantic Search that finds content by meaning rather than keywords, and AI Actions that create tasks from natural commands. Additional features include rich text support, image and file capture, pattern recognition across notes, smart tags, task management, daily briefs with AI-generated summaries, and calendar synchronization with Google Calendar.

The AI assistant doesn't just answer questions but takes action for users, creating tasks from notes and managing content through natural language commands. It transforms scattered thoughts into organized action by understanding the meaning behind user input.

Benefits include never losing thoughts with instant voice transcription, finding relevant notes even with different wording, and getting AI-generated summaries of important information. Use cases include capturing ideas quickly, organizing knowledge, managing tasks through natural language, and staying on top of priorities with daily briefs.

The product targets users looking to build their second brain and manage knowledge more effectively. It integrates with Google Calendar for linking meeting notes with events and provides full control with undoable AI actions.