Carbon Voice: Carbon Voice is an asynchronous voice-messaging app that automatically transcribes voice memos and uses AI to generate summaries, action items, and documents. Shadow: A bot-free, Mac-based AI meeting assistant that transcribes and summarizes calls locally without joining as a participant. This comparison weighs them on pricing, features, and everyday workflow fit.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Carbon Voice when replacing status meetings and calls with async voice messages that get auto-transcribed and summarized matters most, and Shadow when privacy-conscious teams that prefer on-device transcription matters most. Run both through a week of actual calls to see which suits your workflow.
Carbon Voice is an asynchronous voice-messaging app that automatically transcribes voice memos and uses AI to generate summaries, action items, and documents.
A bot-free, Mac-based AI meeting assistant that transcribes and summarizes calls locally without joining as a participant.
Carbon Voice is an asynchronous voice-messaging and voice-notes app for iOS, Android, Web, and Apple Watch. Users record voice memos or messages with a single keystroke or swipe, and every message is automatically transcribed so it can be read, searched, labeled, and organized. The app is built around reducing real-time meetings and calls: instead of scheduling synchronous time, teammates exchange voice messages that the recipient can catch up on later. Layered on top is a large library of AI actions that turn raw voice into structured content — bulleted summaries, cleaned-up transcripts (removing filler words and fixing grammar), meeting notes, agendas, action items, professional emails, and longer documents such as PRDs and reports. Users can also query an AI assistant about any chat. A Global Voice feature can translate messages between languages, and messages can be sent to people who don't have the app via a secure email link. It is aimed at distributed teams, managers, and individuals who prefer talking over typing.
Best suited for
Shadow is a bot-free AI meeting assistant for macOS that captures meetings by listening to your computer's audio in the background rather than joining the call as a visible participant. Because transcription runs locally on the Mac, the audio does not need to leave the device for that core processing step, which the company positions as a privacy advantage. Shadow can automatically detect when a meeting starts, transcribe the conversation with speaker identification, and turn the discussion into structured notes, summaries, and follow-up items. It also captures on-screen content alongside the spoken audio, so material shared during a call (slides, dashboards, or shared windows) can be reflected in the output. The tool works across common conferencing platforms including Zoom, Microsoft Teams, Google Meet, Webex, Slack, and Discord. Users can configure customizable prompts (described as Skills) to generate notes, summaries, or drafted emails, and connect outputs to other tools via webhooks. It is aimed at professionals and teams who want meeting capture without adding another bot to the call. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Carbon Voice is a free tier with paid upgrades (freemium); Shadow is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Carbon Voice | Shadow |
|---|---|---|
| Core capability | Automatic transcription of every voice message, made searchable and organizable | Bot-free capture that records system audio without joining the meeting as a participant |
| Standout feature | AI summaries, catch-ups, and action-item extraction from conversations | On-device (local) transcription on macOS |
| Team usage | AI document generation (meeting notes, agendas, emails, PRDs, reports) from voice | Speaker identification during transcription |
| Integrations | Transcript clean-up that removes filler words and corrects grammar | Captures on-screen content in addition to spoken audio |
| Languages & capture | Cross-platform sync across iOS, Android, Web, and Apple Watch | Customizable prompts/Skills to generate notes, summaries, and emails |
| Best-fit workflow | Global Voice automatic translation between languages | Webhook integration to connect outputs to other tools |
Carbon Voice
Choose Carbon Voice if you need replacing status meetings and calls with async voice messages that get auto-transcribed and summarized — strengths include combines voice capture, automatic transcription, and a broad set of ai summarization/document actions in one app.
Shadow
Choose Shadow if you need capturing notes and summaries across multiple conferencing platforms without a bot joining — strengths include does not add a visible bot to meetings.
Carbon Voice
Shadow
It depends on your workflow. Carbon Voice is strong for replacing status meetings and calls with async voice messages that get auto-transcribed and summarized, while Shadow is strong for capturing notes and summaries across multiple conferencing platforms without a bot joining. Both transcribe and summarize meetings.
Carbon Voice is a free tier with paid upgrades and Shadow is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Often yes: teams combine tools when one handles capture and another handles analysis.
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