EventCAT: AI platform that delivers real-time subtitles and voice interpretation in 50+ languages for conferences, webinars, and online meetings. OpenOats: Open-source macOS meeting note-taker that transcribes calls locally and surfaces relevant talking points from your own notes in real time. The right pick comes down to team size, budget, and the workflows you want to automate.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist EventCAT when providing multilingual live subtitles and audio at in-person conferences and seminars matters most, and OpenOats when privately transcribing meetings on a mac without sending audio to the cloud matters most. Trial each on a few real meetings before you commit — the better fit usually shows fast.
AI platform that delivers real-time subtitles and voice interpretation in 50+ languages for conferences, webinars, and online meetings.
Open-source macOS meeting note-taker that transcribes calls locally and surfaces relevant talking points from your own notes in real time.
EventCAT is an AI-powered real-time interpretation and subtitling platform built by XL8 Inc. for meetings, webinars, and live conferences. It converts spoken audio into live captions and synthesized voice translation across more than 50 languages, allowing multilingual audiences to follow sessions without traditional interpreter booths. The platform offers two products: an OnlineMeeting mode that integrates with Zoom, Google Meet, and Microsoft Teams, and a Conference mode designed for in-person and hybrid events. For conferences, each session generates a unique QR code so attendees can view or listen to captions in their preferred language on a phone or tablet, while subtitles can also be projected on main event screens and pushed to YouTube and OBS streams. EventCAT exposes two processing modes, one tuned for low latency and one tuned for accuracy, and supports custom glossaries for industry and company-specific terminology. After an event it produces downloadable transcripts in multiple languages and AI-generated summaries. The service advertises SOC 2 certification and a stated policy of not storing or training on user data, and it is actively operating in 2025 and 2026. 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
EventCAT 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 | EventCAT | OpenOats |
|---|---|---|
| Core capability | Real-time AI subtitles and synthesized voice interpretation in 50+ languages | Real-time local transcription of both sides of a conversation on Apple Silicon |
| Standout feature | Conference mode with per-session QR codes for attendees plus main-screen subtitle display | Live retrieval of relevant talking points from your own notes during meetings |
| Team usage | Integrations with Zoom, Google Meet, Microsoft Teams, YouTube, and OBS | Window hidden from screen sharing by default for privacy on calls |
| Integrations | Selectable speed-prioritized and accuracy-prioritized translation modes | Auto-saved transcripts and session logs to local files |
| Languages & capture | Custom glossaries for industry and proper-noun accuracy | Works fully local via Ollama or with cloud models (OpenRouter, Voyage AI) |
| Best-fit workflow | Post-event downloadable multilingual transcripts and AI summaries | MIT-licensed, self-hostable Swift application |
EventCAT
Choose EventCAT if you need providing multilingual live subtitles and audio at in-person conferences and seminars — strengths include combines both live captions and voice interpretation in one platform.
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.
EventCAT
OpenOats
It depends on your workflow. EventCAT is strong for providing multilingual live subtitles and audio at in-person conferences and seminars, while OpenOats is strong for getting live, context-aware prompts from your own notes during sales or customer calls. Both transcribe and summarize meetings.
EventCAT 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.
You can — some teams pair them when each covers a different part of the meeting workflow.
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