Brainstream is an AI-powered note-taking application designed to serve as your second brain by helping you capture, organize, and unlock insights from your knowledge. It uses artificial intelligence to understand your ideas and assist in getting things done efficiently.

The app offers Brain Chat for natural conversation with your notes, allowing you to ask questions and create tasks through dialogue. Voice Notes enable instant transcription of spoken memos, while Semantic Search finds content by meaning rather than just keywords. AI Actions let you create tasks and manage notes using natural language commands like "remind me to call John tomorrow."

The system helps you capture everything including rich text, voice recordings, images, and files in one centralized location. It assists in thinking deeper by identifying patterns and connections across all your notes, and keeps you organized through tags, tasks, and smart search functionality.

Brainstream provides daily briefs with AI-generated summaries of important information and ensures user control by making every AI action undoable with a single tap. The app integrates with Google Calendar to link meeting notes with calendar events, creating a seamless workflow between planning and note-taking.

The product targets users looking to build their second brain by capturing thoughts, finding connections, and creating actionable insights from their knowledge base.