Buzz: Popular open-source desktop app that transcribes and translates audio offline on your own computer using OpenAI's Whisper. JustCall: Cloud communications platform with AI call scoring, real-time agent assist, and conversation intelligence for sales coaching across voice and SMS. 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 Buzz when transcribing recorded meetings, interviews, podcasts, or lectures offline matters most, and JustCall when reps getting live on-screen objection-handling prompts during calls matters most. Run both through a week of actual calls to see which suits your workflow.
Popular open-source desktop app that transcribes and translates audio offline on your own computer using OpenAI's Whisper.
Cloud communications platform with AI call scoring, real-time agent assist, and conversation intelligence for sales coaching across voice and SMS.
Buzz is a widely used open-source desktop application that transcribes and translates audio offline on the user's personal computer, powered by OpenAI's Whisper. It is MIT-licensed and actively maintained, with v1.4.4 released in March 2026, and it has grown a large community with roughly 19.7k GitHub stars. Buzz runs on macOS, Windows, and Linux, with installation options including Flatpak, Snap, and PyPI. It supports both importing existing audio and video files and real-time transcription from microphone input, and it can export results in formats such as TXT, SRT, and VTT for subtitling and documentation. The app includes an advanced transcript viewer with search and playback controls, a watch folder for automatically transcribing new files, and a command-line interface for automation. It offers GPU acceleration through CUDA for Nvidia cards, Apple Silicon support, and Vulkan for many other GPUs, which makes faster transcription practical even on laptops. Buzz also provides speaker identification and speech separation for noisy audio, plus a plugin system that adds capabilities like AI-generated summaries. Because all processing happens locally, recordings and transcripts remain on the user's machine rather than being uploaded to a cloud service. Pricing varies by plan. Check the official website for current pricing.
Best suited for
JustCall is a cloud-based communications platform for sales and support teams that layers AI coaching and conversation intelligence on top of voice, SMS, and WhatsApp. Its AI Call Scoring automatically evaluates every conversation against custom frameworks such as BANT, MEDDIC, or proprietary scorecards, with per-question breakdowns that show where reps underperform and scores that sync back to CRM records. Real-Time Agent Assist delivers on-screen prompts during active calls, with cues for objection handling, script adherence, and compliance alerts for regulated conversations. The conversation intelligence layer produces AI-generated call summaries with action items, talk-to-listen ratio analysis, sentiment tracking, filler-word and dead-air detection, and searchable transcripts across all conversations. Calls are recorded and transcribed automatically with speaker identification and moment highlighting. For live management, whisper and barge modes let managers coach mid-call. JustCall is used by thousands of teams across sales coaching, contact-center, and compliance-heavy sectors, and integrates with major CRMs. Headquartered in San Francisco, it is a live, operating product as of 2025/2026 used for new-rep ramp, coaching, and conversation analysis. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Buzz is a free tier with paid upgrades (freemium); JustCall is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Buzz | JustCall |
|---|---|---|
| Core capability | Offline transcription and translation using OpenAI's Whisper | CRM integrations and multi-channel voice, SMS, and WhatsApp |
| Standout feature | Real-time transcription from microphone input | AI Call Scoring against custom frameworks (BANT, MEDDIC, or proprietary scorecards) with per-question breakdowns |
| Team usage | Speaker identification and speech separation for noisy audio | Real-Time Agent Assist with on-screen prompts and compliance alerts during calls |
| Integrations | Exports to TXT, SRT, and VTT | AI-generated call summaries with action items |
| Languages & capture | Watch folder for automatic transcription and a command-line interface | Conversation intelligence: talk-to-listen ratio, sentiment, filler-word and dead-air detection |
| Best-fit workflow | GPU acceleration via CUDA, Apple Silicon, and Vulkan | Automatic call recording and transcription with speaker identification and moment highlighting |
Buzz
Choose Buzz if you need transcribing recorded meetings, interviews, podcasts, or lectures offline — strengths include fully offline so audio and transcripts stay on the user's computer.
JustCall
Choose JustCall if you need sales teams scoring every call against meddic or bant and syncing results to the crm — strengths include custom scoring frameworks (bant, meddic) give structured, repeatable call evaluation.
Buzz
JustCall
It depends on your workflow. Buzz is strong for transcribing recorded meetings, interviews, podcasts, or lectures offline, while JustCall is strong for sales teams scoring every call against meddic or bant and syncing results to the crm. Both transcribe and summarize meetings.
Buzz is a free tier with paid upgrades and JustCall 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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