Notes & knowledge
Brainstream
AI-powered note-taking app that captures thoughts, finds connections, and enables action through natural conversation
An AI-powered note-taking app that helps you build your second brain through voice notes, semantic search, and AI assistant features to organize and unlock
Overview
A look at usebrainstream.app
Brainstream is an AI-powered note-taking application designed to help users capture, organize, and understand their thoughts. It combines rich text editing, voice transcription, semantic search, and AI analysis to make notes more valuable over time.
The app features Brain Chat, an AI assistant available in two modes: Search Notes to find and discuss your notes using natural language, or Just Chat for general AI conversations. Users can create tasks and manage knowledge through natural conversation, with the ability to say things like "remind me to call John" or "mark the grocery task as done".
Additional features include voice capture with automatic transcription using OpenAI Whisper, semantic search that finds relevant notes by meaning rather than keywords, AI-generated daily and weekly briefs, and the ability to forward emails directly to notes. Every AI action can be undone immediately, and the app provides task extraction, note summaries, and AI-suggested tags to help users maintain consistent organization.
Brainstream stores notes securely in Google Firebase and uses OpenAI's API for AI features, with a commitment that user data is not used to train AI models.
Feature notes
- Brain Chat AI assistant with two modes: Search Notes and Just Chat
- Voice transcription using OpenAI Whisper
- Semantic search that finds relevant notes by meaning
- AI Actions to create tasks and manage notes with natural language commands
- Daily and Weekly Briefs with AI-generated summaries
- Rich text editor with formatting and attachments
- Undo button for all AI actions
- Note summaries, rewrites, task extraction, and tag suggestions
Pricing
Pricing model: Freemium
Free: 50 AI actions per month, 50 notes total, 5MB attachments. Pro: 500 AI actions per month, unlimited notes, 20MB attachments, Google Calendar integration, priority support. Available through app store subscription (iOS/Android), monthly or annual billing.
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FAQ
- What is Brainstream?
- Brainstream is an AI-powered note-taking app designed to help you capture, organize, and understand your thoughts. It combines rich text editing, voice transcription, semantic search, and AI analysis to make your notes more valuable over time.
- What is Brain Chat?
- Brain Chat is your AI assistant with two modes: Search Notes to find and discuss your notes using natural language, or Just Chat for general AI conversations. You can also take action by saying things like "remind me to call John" or "mark the grocery task as done".
- What actions can AI take for me?
- Brain Chat can create tasks, complete tasks, update task details, delete tasks with confirmation, create notes, and manage tags. Every action shows what was done and can be undone with one tap. Destructive actions like deleting tasks require confirmation before they happen.
- How does voice transcription work?
- Tap the microphone icon in the note editor to start recording. When you're done, the audio is sent to OpenAI Whisper for transcription, and the transcribed text appears in your note. Voice transcription is accurate for most languages and does not count against your AI quota.
- What's the difference between Free and Pro?
- Free plan includes 50 AI actions per month, 50 notes total, and 5MB attachments. Pro plan offers 500 AI actions per month, unlimited notes, 20MB attachments, Google Calendar integration, and priority support.
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