Callabo: Korean AI meeting-notes service from Return Zero that records, transcribes, summarizes, and analyzes meetings for individuals and teams. OpenOats: Open-source macOS meeting note-taker that transcribes calls locally and surfaces relevant talking points from your own notes in real time. Below, they line up on price, capture method, and how each fits a real meeting stack.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Callabo when turning recurring internal team meetings into shareable summaries and action items matters most, and OpenOats when privately transcribing meetings on a mac without sending audio to the cloud matters most. Try them side by side on real calls before deciding — needs vary by team.
Korean AI meeting-notes service from Return Zero that records, transcribes, summarizes, and analyzes meetings for individuals and teams.
Open-source macOS meeting note-taker that transcribes calls locally and surfaces relevant talking points from your own notes in real time.
Callabo (콜라보) is an AI meeting assistant developed by Return Zero (리턴제로), a Korean speech-AI company. It automatically records, transcribes, summarizes, and analyzes business meetings for both individuals and enterprise teams, aiming to turn a one-hour meeting into organized notes with a single click and no complex setup. Callabo connects to online meetings on Google Meet, Microsoft Teams, Zoom, and Webex, and also supports recording in-person meetings. After a meeting it produces transcripts, paragraph summaries, key discussion points, and action items with timestamped source quotes, and it can automatically detect the meeting language to handle multilingual conversations. An AI chat feature lets users ask follow-up questions about a meeting beyond the generated insights. The service integrates with workflow tools including Google Calendar, Outlook, Salesforce, Pipedrive, HubSpot, Slack, Microsoft Teams, Zapier, Notion, Confluence, and Linear. For enterprises, Callabo provides meeting access controls, team and member permission management, original-media retention settings, two-factor authentication, IP access restrictions, and audit logs, and it holds ISO/IEC 27001 certification. Mobile apps are available for both iOS and Android. Pricing varies by plan. Check the official website for current pricing.
Best suited for
OpenOats is an open-source macOS meeting note-taker, created by Yazin Akkawi (the project was previously named OpenGranola before being renamed), that sits alongside your calls and both transcribes the conversation and helps you contribute to it. It captures both sides of a meeting and transcribes audio locally on Apple Silicon so audio never leaves the device, while in real time it searches your own markdown or plain-text knowledge base to surface relevant talking points and things worth saying during the discussion. The application window is hidden from screen sharing by default, which lets it stay private during video calls, and transcripts and session logs are auto-saved locally. OpenOats supports both fully local operation through Ollama and cloud providers such as OpenRouter and Voyage AI, so users can choose between complete offline privacy and hosted models. It is written primarily in Swift, distributed under the MIT license, and actively maintained with very frequent releases. The project documents itself at openoats.com and targets users who want a privacy-respecting, self-hostable alternative to cloud meeting copilots, combining live transcription with a retrieval layer over personal notes rather than only producing an after-the-fact summary. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Callabo is a free tier with paid upgrades (freemium); OpenOats is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Callabo | OpenOats |
|---|---|---|
| Core capability | Automatic recording and transcription for Google Meet, Teams, Zoom, and Webex | Real-time local transcription of both sides of a conversation on Apple Silicon |
| Standout feature | Paragraph summaries, key discussion points, and timestamped action items | Live retrieval of relevant talking points from your own notes during meetings |
| Team usage | Automatic meeting-language detection for multilingual meetings | Window hidden from screen sharing by default for privacy on calls |
| Integrations | AI chat to ask follow-up questions about a meeting | Auto-saved transcripts and session logs to local files |
| Languages & capture | Integrations with calendars, CRM, messengers, and project tools | Works fully local via Ollama or with cloud models (OpenRouter, Voyage AI) |
| Best-fit workflow | Enterprise security: permissions, 2FA, IP restrictions, and audit logs | MIT-licensed, self-hostable Swift application |
Callabo
Choose Callabo if you need turning recurring internal team meetings into shareable summaries and action items — strengths include serves both individual users and enterprise teams.
OpenOats
Choose OpenOats if you need getting live, context-aware prompts from your own notes during sales or customer calls — strengths include local on-device transcription keeps meeting audio private.
Callabo
OpenOats
It depends on your workflow. Callabo is strong for turning recurring internal team meetings into shareable summaries and action items, while OpenOats is strong for getting live, context-aware prompts from your own notes during sales or customer calls. Both transcribe and summarize meetings.
Callabo is a free tier with paid upgrades and OpenOats 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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