Airspeed: Sales conversation intelligence and coaching platform (formerly Glyphic) that records and analyzes calls, scores reps, and keeps CRM data in sync. 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. Below, they line up on price, capture method, and how each fits a real meeting stack.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Airspeed when revenue teams wanting every call scored and connected to account history matters most, and Carbon Voice when capturing spoken ideas and turning them into structured documents, emails, or action items matters most. Try them side by side on real calls before deciding — needs vary by team.
Sales conversation intelligence and coaching platform (formerly Glyphic) that records and analyzes calls, scores reps, and keeps CRM data in sync.
Carbon Voice is an asynchronous voice-messaging app that automatically transcribes voice memos and uses AI to generate summaries, action items, and documents.
Airspeed, formerly known as Glyphic, is a sales conversation intelligence and revenue-team platform that records, transcribes, and analyzes calls and connects them with email and ticket history into a persistent memory of each customer account. It integrates with meeting platforms such as Zoom and Teams to capture conversations, then surfaces key themes, generates pre-call and post-call intelligence, and provides contextual answers about accounts grounded in actual interactions. For coaching, Airspeed identifies coachable moments with specific post-call scorecards, tracks metrics like talk-to-listen ratio against team benchmarks, delivers automated coaching plans before standups, and offers a practice simulator with buyer personas to build specific skills such as pricing-objection handling and champion building. It scores live calls during conversations and tracks rep improvement over time. On the workflow side, Airspeed auto-syncs data to Salesforce, HubSpot, and Outreach, works within Gmail, Outlook, and Slack, and uses agents that detect signals like champion changes or stalled deals to draft outreach for rep approval and maintain CRM hygiene. The company is based in London and New York and rebranded from Glyphic to Airspeed in 2026; it is a live, operating product. Pricing varies by plan. Check the official website for current pricing.
Best suited for
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
Airspeed is a free tier with paid upgrades (freemium); Carbon Voice is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Airspeed | Carbon Voice |
|---|---|---|
| Core capability | Call and meeting recording with transcription via Zoom, Teams, and other platforms | Automatic transcription of every voice message, made searchable and organizable |
| Standout feature | Persistent customer memory linking calls, emails, and tickets | AI summaries, catch-ups, and action-item extraction from conversations |
| Team usage | Pre-call and post-call AI intelligence and key-theme extraction | AI document generation (meeting notes, agendas, emails, PRDs, reports) from voice |
| Integrations | Rep coaching with post-call scorecards, talk-to-listen benchmarks, and coaching plans | Transcript clean-up that removes filler words and corrects grammar |
| Languages & capture | Skill tracking on specific competencies plus a roleplay simulator with buyer personas | Cross-platform sync across iOS, Android, Web, and Apple Watch |
| Best-fit workflow | Live call scoring during conversations | Global Voice automatic translation between languages |
Airspeed
Choose Airspeed if you need revenue teams wanting every call scored and connected to account history — strengths include combines conversation intelligence with structured rep scorecards and skill tracking.
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.
Airspeed
Carbon Voice
It depends on your workflow. Airspeed is strong for revenue teams wanting every call scored and connected to account history, while Carbon Voice is strong for replacing status meetings and calls with async voice messages that get auto-transcribed and summarized. Both transcribe and summarize meetings.
Airspeed is a free tier with paid upgrades and Carbon Voice 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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