Callabo: Korean AI meeting-notes service from Return Zero that records, transcribes, summarizes, and analyzes meetings for individuals and teams. Olovka AI: AI lecture recorder for students that captures, transcribes, and summarizes classes into organized notes. 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 Callabo when turning recurring internal team meetings into shareable summaries and action items matters most, and Olovka AI when converting youtube and online-course videos into organized notes matters most. Run both through a week of actual calls to see which suits your workflow.
Korean AI meeting-notes service from Return Zero that records, transcribes, summarizes, and analyzes meetings for individuals and teams.
AI lecture recorder for students that captures, transcribes, and summarizes classes into organized notes.
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
Olovka AI is an AI lecture note-taking tool aimed at students who want to focus on listening rather than writing during class. The app records lectures with the goal of high transcription accuracy, provides real-time transcript conversion while recording, and then automatically produces structured, organized notes from the session. It accepts multiple input formats, including live classroom recordings, YouTube videos, and uploaded audio or PDF documents, so students can process both in-person lectures and online course material in one place. A notable capability is assignment detection, where the tool flags homework and tasks mentioned during a lecture so they are not missed. Generated notes are editable and printable, allowing students to refine them and study offline. The service offers free sign-up via Google authentication and runs on AI from OpenAI, with a flashcard feature listed as planned. Olovka positions itself squarely in the education niche for note capture and study, and is marketed toward students at a range of universities. It is best suited to individual learners rather than professional meeting documentation. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Callabo is a free tier with paid upgrades (freemium); Olovka AI is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Callabo | Olovka AI |
|---|---|---|
| Core capability | Automatic recording and transcription for Google Meet, Teams, Zoom, and Webex | Google sign-in for quick onboarding |
| Standout feature | Paragraph summaries, key discussion points, and timestamped action items | Live lecture recording with real-time transcription |
| Team usage | Automatic meeting-language detection for multilingual meetings | Automatic AI-generated structured notes from lectures |
| Integrations | AI chat to ask follow-up questions about a meeting | Multiple inputs: live recordings, YouTube links, and uploaded audio or PDFs |
| Languages & capture | Integrations with calendars, CRM, messengers, and project tools | Assignment and homework detection from lecture audio |
| Best-fit workflow | Enterprise security: permissions, 2FA, IP restrictions, and audit logs | Editable and printable notes for offline study |
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.
Olovka AI
Choose Olovka AI if you need recording and transcribing in-person university lectures — strengths include purpose-built for student lecture capture and study.
Callabo
Olovka AI
It depends on your workflow. Callabo is strong for turning recurring internal team meetings into shareable summaries and action items, while Olovka AI is strong for recording and transcribing in-person university lectures. Both transcribe and summarize meetings.
Callabo is a free tier with paid upgrades and Olovka AI 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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