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. Circleback: AI meeting assistant that automatically takes notes, transcribes in 100+ languages, assigns action items, and runs automations across Zoom, Google Meet, Teams, Webex, and in-person calls. Below, they line up on price, capture method, and how each fits a real meeting stack.
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 Circleback when syncing meeting outcomes into crms and project tools like hubspot, salesforce, notion, or linear matters most. Try them side by side on real calls before deciding — needs vary by team.
Carbon Voice is an asynchronous voice-messaging app that automatically transcribes voice memos and uses AI to generate summaries, action items, and documents.
AI meeting assistant that automatically takes notes, transcribes in 100+ languages, assigns action items, and runs automations across Zoom, Google Meet, Teams, Webex, and in-person calls.
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
Circleback is a Y Combinator-backed AI meeting assistant that captures, transcribes, and organizes conversations automatically. It works with Zoom, Google Meet, Microsoft Teams, Webex, GoTo, Slack huddles, and in-person meetings, and offers a botless option via its desktop app for those who prefer not to send a bot into calls. After each meeting it produces structured notes, identifies and auto-assigns action items, and provides searchable transcripts with speaker identification across 100+ languages. AI-driven automations and "Insights" can push data into connected tools and answer questions across past meetings. Integrations include Gmail, Outlook, Slack, Google Calendar, HubSpot, Salesforce, Attio, Zoho, Linear, Notion, Monday, Zapier, and Make, plus developer access through MCP, a CLI, and webhooks. Circleback states SOC 2, GDPR, EU-US DPF, and HIPAA compliance, and offers mobile and desktop apps. New users can try it free before subscribing.
Best suited for
Carbon Voice is a free tier with paid upgrades (freemium); Circleback is from $20.83/mo (paid). Always confirm current pricing on each vendor's site before buying.
| Feature | Carbon Voice | Circleback |
|---|---|---|
| Core capability | Automatic transcription of every voice message, made searchable and organizable | AI meeting notes |
| Standout feature | AI summaries, catch-ups, and action-item extraction from conversations | Action item tracking |
| Team usage | AI document generation (meeting notes, agendas, emails, PRDs, reports) from voice | Multi-language transcription |
| Integrations | Transcript clean-up that removes filler words and corrects grammar | AI search across meetings |
| Languages & capture | Cross-platform sync across iOS, Android, Web, and Apple Watch | Workflow automations |
| Best-fit workflow | Global Voice automatic translation between languages | AI meeting notes |
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.
Circleback
Choose Circleback if you need automatically capturing notes and action items so attendees can stay focused in meetings — strengths include works across zoom, google meet, microsoft teams, webex, goto, slack huddles, and in-person meetings.
Carbon Voice
Circleback
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 Circleback is strong for automatically capturing notes and action items so attendees can stay focused in meetings. Both transcribe and summarize meetings.
Carbon Voice is a free tier with paid upgrades and Circleback is from $20.83/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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