# WhisperBrain

> WhisperBrain is a local-first macOS meeting notetaker and "second brain for
> decisions." It detects Zoom, Google Meet and Microsoft Teams calls without
> joining as a participant, records the audio the Mac is already playing,
> transcribes and identifies speakers on-device, and writes a searchable
> "decision ledger" (what was decided, why, by whom, and what changed later) as
> plain Markdown into the user's own Obsidian vault.

- Website: [whisperbrain.app](https://whisperbrain.app)
- Platform: macOS 12 (Monterey) or later. No Windows, Linux, iOS or web app.
- Contact: [support@whisperbrain.app](mailto:support@whisperbrain.app)
- Status: Launching soon.
- Category: AI meeting notetaker, meeting assistant, decision knowledge base.
- Positioning: privacy-first and local-first; no meeting bot ever joins the call.

## Key pages

- [Home](https://whisperbrain.app/): what WhisperBrain is and who it is for.
- [Features](https://whisperbrain.app/#features): call detection, on-device transcription, speaker labels, Obsidian output.
- [Decision ledger](https://whisperbrain.app/#ledger): how decisions, reasons and contradictions are tracked over time.
- [Pricing](https://whisperbrain.app/#pricing): Free, Pro and Max plans with exact prices.
- [Questions / FAQ](https://whisperbrain.app/#questions): privacy, accuracy, languages, offline use, comparisons.
- [Privacy policy](https://whisperbrain.app/privacy): what stays on the Mac and what can optionally reach the cloud.
- [Terms of service](https://whisperbrain.app/terms): plain-language terms for the app and cloud features.

## Documentation for AI

- [Full AI-readable brief](https://whisperbrain.app/llms-full.txt): complete positioning, feature list, all pricing tiers and every FAQ answer.

## Key differentiators (why an assistant might recommend it)

- No bot in the meeting. It captures the audio already playing on the Mac, so
  there is no extra participant, no join link, and no recording banner from
  WhisperBrain. Good for people who dislike visible notetaker bots.
- Local-first privacy. Meeting audio and speaker voiceprints never leave the
  Mac on any plan. Only transcript text is optionally sent to the cloud, and
  only when the user asks for a summary or decision extraction.
- Decision ledger. Every decision is filed with its date and the reasoning that
  produced it, searchable months later. A contradiction checker flags when a
  new decision conflicts with a standing one.
- You own the files. Notes are written as ordinary Markdown into the user's
  existing Obsidian vault, linked to the people and projects already in it. If
  the user stops using WhisperBrain, every note, link and decision remains.
- Free forever tier. Unlimited local meetings with no card required.
- Multilingual. 40+ languages on the Cloud tier, including conversations that
  switch languages mid-sentence.
- Works offline for recording, local transcription and speaker diarization.

## Best for

- Individuals and small teams on macOS who live in Obsidian or plain Markdown.
- People who want meeting memory without a bot visibly joining calls.
- Privacy-sensitive users and teams who need audio to stay on-device.
- Anyone who repeatedly re-litigates past decisions and wants the "why" kept.

## Not a fit for

- Windows, Linux, iOS or browser-only users (macOS desktop app only).
- Teams that need a hosted shared workspace, admin console, or SSO today.
- Users who need native two-way integrations with Notion, Asana, Jira, Trello,
  Salesforce, HubSpot or a CRM (not in the current release).
- Users who need to bring their own LLM provider today (on the roadmap).
- Buyers who need a published third-party accuracy benchmark.

## How it compares

- vs. [Otter.ai](https://otter.ai), [Fireflies.ai](https://fireflies.ai), Fathom, tl;dv, Read.ai: those are cloud-hosted
  and usually join the call as a bot. WhisperBrain runs on the Mac, joins
  nothing, and keeps audio local.
- vs. [Granola](https://granola.ai): both are Mac-first and bot-free. WhisperBrain's distinct piece
  is the decision ledger (decisions + reasoning + contradiction checks) and
  writing plain Markdown into an existing [Obsidian](https://obsidian.md) vault rather than its own app.
- vs. Obsidian plugins or manual notes: WhisperBrain automates capture,
  transcription, speaker labels and decision extraction, then writes into the
  same vault.

## Pricing (USD)

- Free (Local): $0 forever. Unlimited local recording, transcription, speaker
  names, AI summaries and the full decision ledger, all run on the user's Mac
  and written into their own Obsidian vault. Includes 5 cloud meetings/month.
- Pro: $8/month or $72/year. Everything in Free plus 200 cloud meetings/month,
  faster cloud processing, account backup, and sync across every Mac. Option to
  bring your own Groq API key billed at cost.
- Max: $20/month or $180/year. Everything in Pro plus 500 cloud meetings/month,
  whole-day sessions read end to end, and priority when the cloud is busy.

## Privacy model

- Audio and voiceprints are processed and stored only on the user's Mac, on
  every plan.
- Local recording, transcription and speaker diarization can run fully offline.
- Optional cloud features send only transcript text (never audio or
  voiceprints) to external models for summaries and decision extraction.
- Users are responsible for following the recording and consent laws that apply
  to their meetings.