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. Speak: Speak AI is a meeting transcription and conversation-analysis platform with an auto-joining bot for Zoom, Teams, Meet, and Webex, plus sentiment and theme analysis. We compare them on cost, capture approach, and day-to-day fit so you can choose faster.
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 Speak when analyzing customer interviews and research calls for themes and sentiment 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.
Speak AI is a meeting transcription and conversation-analysis platform with an auto-joining bot for Zoom, Teams, Meet, and Webex, plus sentiment and theme analysis.
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
Speak (Speak AI) is a transcription and conversation-intelligence platform that turns voice and video into searchable, structured data. Its meeting notetaker bot auto-joins Zoom, Microsoft Teams, Google Meet, and Webex calls to deliver real-time transcription with speaker identification across 100+ languages, and it also handles file uploads, phone-call transcription, an embeddable web recorder, and iOS/Android capture. Beyond transcripts, Speak extracts custom fields, themes, and sentiment, and lets you chat with your data using multiple AI models. It exports to CSV and JSON, integrates with Slack, Zapier, and a developer API, and offers an MCP server connecting Claude, ChatGPT, and Gemini. New accounts get a free 7-day trial (no credit card) with 30 minutes of transcription. It is geared toward researchers, analysts, and sales/ops teams rather than simple note-taking alone.
Best suited for
Carbon Voice is a free tier with paid upgrades (freemium); Speak is from $25/mo (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Carbon Voice | Speak |
|---|---|---|
| Core capability | Automatic transcription of every voice message, made searchable and organizable | Meeting notetaker bot |
| Standout feature | AI summaries, catch-ups, and action-item extraction from conversations | Real-time transcription |
| Team usage | AI document generation (meeting notes, agendas, emails, PRDs, reports) from voice | Sentiment and theme analysis |
| Integrations | Transcript clean-up that removes filler words and corrects grammar | Multi-model AI chat |
| Languages & capture | Cross-platform sync across iOS, Android, Web, and Apple Watch | CSV/JSON export |
| Best-fit workflow | Global Voice automatic translation between languages | Meeting notetaker bot |
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.
Speak
Choose Speak if you need recording and transcribing zoom, teams, meet, and webex meetings — strengths include auto-joining meeting bot supports zoom, teams, google meet, and webex.
Carbon Voice
Speak
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 Speak is strong for recording and transcribing zoom, teams, meet, and webex meetings. Both transcribe and summarize meetings.
Carbon Voice is a free tier with paid upgrades and Speak is from $25/mo. Check each vendor's pricing page for the latest plans and free-tier limits.
Yes. Many teams run more than one meeting assistant when the workflows are complementary.
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