Callabo: Korean AI meeting-notes service from Return Zero that records, transcribes, summarizes, and analyzes meetings for individuals and teams. FlashRev: AI parallel dialer within the FlashLabs go-to-market platform, with call recording, real-time conversation analysis, and AI summaries. 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 FlashRev when reviewing recorded calls with ai summaries and sentiment for coaching 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 parallel dialer within the FlashLabs go-to-market platform, with call recording, real-time conversation analysis, and AI summaries.
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
FlashRev is the AI go-to-market product from FlashLabs (previously branded FlashIntel) that pairs outbound calling with conversation intelligence for B2B sales teams. Its AI parallel dialer places multiple outbound calls at once and connects reps instantly when a prospect answers, skipping unanswered calls and answering machines so sellers focus on live conversations. The platform records and tracks calls and analyzes each connected conversation in real time, automatically generating intent labels, converting transcripts into concise summaries, and identifying conversation sentiment at scale to support review and coaching. FlashRev positions itself as a broader revenue platform that combines prospecting data, omnichannel engagement across email, SMS, social, and calls, and AI sales-development automation, with the parallel dialer as one component of that suite. It integrates with common CRMs and sales-engagement tools such as Salesforce, HubSpot, Salesloft, and Outreach. The product is live and marketed to outbound and revenue teams; FlashLabs publicly announced an unlimited parallel-dialing capability and continues to develop the platform into 2025 and 2026. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Callabo is a free tier with paid upgrades (freemium); FlashRev is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Callabo | FlashRev |
|---|---|---|
| Core capability | Automatic recording and transcription for Google Meet, Teams, Zoom, and Webex | AI parallel dialer connecting reps to live answers |
| Standout feature | Paragraph summaries, key discussion points, and timestamped action items | Call recording and call tracking |
| Team usage | Automatic meeting-language detection for multilingual meetings | Real-time conversation analysis with automatic intent labels |
| Integrations | AI chat to ask follow-up questions about a meeting | AI-generated call summaries from transcripts |
| Languages & capture | Integrations with calendars, CRM, messengers, and project tools | Conversation sentiment analysis at scale |
| Best-fit workflow | Enterprise security: permissions, 2FA, IP restrictions, and audit logs | Omnichannel outreach across calls, email, SMS, and social |
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.
FlashRev
Choose FlashRev if you need outbound teams running high-volume parallel-dialing campaigns — strengths include combines parallel dialing with conversation intelligence and summaries.
Callabo
FlashRev
It depends on your workflow. Callabo is strong for turning recurring internal team meetings into shareable summaries and action items, while FlashRev is strong for outbound teams running high-volume parallel-dialing campaigns. Both transcribe and summarize meetings.
Callabo is a free tier with paid upgrades and FlashRev is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Yes. Many teams run more than one meeting assistant when the workflows are complementary.
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