Callabo: Korean AI meeting-notes service from Return Zero that records, transcribes, summarizes, and analyzes meetings for individuals and teams. Knowt: AI study platform that turns recorded or uploaded lectures into notes, flashcards, and practice quizzes for students. 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 Knowt when generating flashcards and practice tests from course materials before exams 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.
AI study platform that turns recorded or uploaded lectures into notes, flashcards, and practice quizzes for students.
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
Knowt is an AI-powered study platform built primarily for students and teachers that converts lectures and learning materials into organized study resources. Students can record a lecture live in the app or on the website, or upload existing audio, video, PDFs, and slide decks, and the platform's AI assistant (called Kai) generates summarized notes, flashcards, and practice quizzes from the content. Notes can be formatted as outlines or paragraphs, with adjustable detail levels, and the original audio is saved for reference. Beyond capture and transcription-driven summarization, Knowt functions as a broader study workspace, positioning itself as a free alternative to traditional flashcard apps and offering a large library of community-shared study materials. It also includes teacher-facing features for assigning material and tracking student progress. The tool spans web, iOS, and Android, making it usable across classroom, online-course, and self-study settings. Knowt is aimed at learners who want lecture capture to flow directly into reusable, exam-oriented study artifacts rather than just raw transcripts. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Callabo is a free tier with paid upgrades (freemium); Knowt is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Callabo | Knowt |
|---|---|---|
| Core capability | Automatic recording and transcription for Google Meet, Teams, Zoom, and Webex | Live lecture recording in app and on the web, plus upload of audio, video, PDFs, and slides |
| Standout feature | Paragraph summaries, key discussion points, and timestamped action items | AI-generated notes with adjustable formatting (outline or paragraph) and detail level |
| Team usage | Automatic meeting-language detection for multilingual meetings | Automatic flashcard generation from lecture and document content |
| Integrations | AI chat to ask follow-up questions about a meeting | Practice quiz and test creation from any note, PDF, or video |
| Languages & capture | Integrations with calendars, CRM, messengers, and project tools | Kai AI chat for explaining concepts and answering questions |
| Best-fit workflow | Enterprise security: permissions, 2FA, IP restrictions, and audit logs | Large community library of shared study sets and teacher tools for assignments |
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.
Knowt
Choose Knowt if you need recording university lectures and turning them into structured study notes — strengths include combines capture, summarization, and active-recall study tools in one student-focused app.
Callabo
Knowt
It depends on your workflow. Callabo is strong for turning recurring internal team meetings into shareable summaries and action items, while Knowt is strong for recording university lectures and turning them into structured study notes. Both transcribe and summarize meetings.
Callabo is a free tier with paid upgrades and Knowt 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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