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. SecureMemo: Japanese on-premise and offline AI meeting-minutes tool from Nishika for confidential, security-sensitive organizations. Which one wins depends on your platform mix, budget, and how hands-off you want notes to be.
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 SecureMemo when documenting hr interviews and sensitive consultations containing personal information 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.
Japanese on-premise and offline AI meeting-minutes tool from Nishika for confidential, security-sensitive organizations.
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
SecureMemo is an AI meeting-minutes application developed by Nishika, Inc., a Japanese company, and is designed for organizations that handle confidential or sensitive meetings and cannot use cloud-based services. It runs in on-premise, closed-network, or fully offline environments, processing audio entirely within the customer's own infrastructure so that voice data never leaves the organization to an external cloud. SecureMemo is powered by Nishika's in-house speech recognition AI called "shirushi," which the company states maintains high recognition accuracy even with background noise or overlapping speech, and can transcribe audio in roughly 100 languages including Japanese, English, Chinese, and Thai. The product offers five core capabilities: accurate voice recognition, automatic speaker identification, automatic meeting-minutes generation that organizes decisions and key points, translation across about 100 languages, and custom terminology support through word registration for specialized vocabulary. The workflow follows a simple three-step process of transcription, speaker recognition, and summarization. It is offered in standalone, USB-dongle, and client-server deployment models, with case studies spanning police, government agencies, universities, manufacturers, and financial institutions. A two-week free trial of the standalone version is available. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Carbon Voice is a free tier with paid upgrades (freemium); SecureMemo is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Carbon Voice | SecureMemo |
|---|---|---|
| Core capability | Automatic transcription of every voice message, made searchable and organizable | On-premise, closed-network, and fully offline operation |
| Standout feature | AI summaries, catch-ups, and action-item extraction from conversations | Proprietary "shirushi" speech recognition engine |
| Team usage | AI document generation (meeting notes, agendas, emails, PRDs, reports) from voice | Automatic speaker identification |
| Integrations | Transcript clean-up that removes filler words and corrects grammar | Automatic meeting-minutes generation with decisions and key points |
| Languages & capture | Cross-platform sync across iOS, Android, Web, and Apple Watch | Translation across roughly 100 languages |
| Best-fit workflow | Global Voice automatic translation between languages | Custom terminology registration for specialized vocabulary |
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.
SecureMemo
Choose SecureMemo if you need recording board, audit, and executive meetings that cannot leave the organization — strengths include keeps audio and transcripts entirely within the organization for high data security.
Carbon Voice
SecureMemo
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 SecureMemo is strong for recording board, audit, and executive meetings that cannot leave the organization. Both transcribe and summarize meetings.
Carbon Voice is a free tier with paid upgrades and SecureMemo is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
You can — some teams pair them when each covers a different part of the meeting workflow.
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