Synopsule: On-Device Private AI Meeting Transcripts

Synopsule: On device private AI meeting transcripts | Product Hunt

Synopsule

Launching today

On device private AI meeting transcripts

31 followers

On device private AI meeting transcripts

31 followers

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Transcription

Synopsule records and transcribes your conversations on your Mac or iPhone with Whisper, labels every speaker, and only summarizes when you ask. No accounts, no uploads. Now on the App Store — one $4.99 purchase for Mac and iPhone.

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Launch tags:Productivity•Meetings•Artificial Intelligence

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I built Synopsule because every meeting tool I tried wanted my audio in their cloud, an account, and a bot in the call. I wanted the transcript without the trade.

So the whole pipeline runs on the device that recorded it:

• Whisper transcribes locally. The model ships in the app, so it works offline on first launch.
• On the Mac it captures both sides of a Zoom/Meet/Teams call by tapping system audio

directly. No bot, no screen recording, no virtual driver.

• Speaker recognition runs on-device too. It labels who said what, remembers returning

voices across recordings, and learns from your corrections. Raw audio is deleted once the transcript exists.

Includes MCP functionality so you can integrate your meeting transcripts with Claude, Codex, and ChatGPT.

Summaries are the one thing that can touch the cloud, and only if you ask. Bring your own key, or run a local model on the Mac so even that stays on your machine. Only transcript text ever leaves, only when you choose.

It's $1.99 once for both Mac and iPhone. Transcription shouldn't be a subscription.

The hardest part was diarization on long, messy recordings, and making speaker recognition improve locally without a cloud model.

I'd love feedback, and I'm here all day. What would it take for you to trust an on-device transcriber over the cloud one you use now?

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4d ago

The on-device, no-upload stance is the part I keep coming back to. I work on voice AI for aging-in-place, and the privacy bar gets brutal once you are handling conversations that involve someone's parents or their health. Running Whisper locally so the audio never leaves the machine is a real answer to that. How is the on-device speaker recognition holding up with overlapping talkers or weaker mics? That is usually where local models start to struggle for us.

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2h ago

Does speaker labeling work offline too, or does it need extra processing somewhere?

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21m ago