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Our privacy approach

Your conversations are
sacred to us.

We never train AI on your data

Your voice recordings and transcripts are processed by OpenAI's API and then forgotten. They never become training data for any model — yours, ours, or theirs.

Audio is deleted within 60 seconds

Recordings are streamed to Whisper for transcription and immediately discarded. We keep the resulting text, not the audio.

Per-user data, end-to-end isolation

Your account sees only your data. We use a strict user-scoped database with auth on every endpoint. Your insights cannot leak to another user.

You can delete everything, anytime

Every session and reading has a delete button. Hit it and the data is gone — from the database, irreversibly. There is no "soft delete" backup.

The honest caveat

Knack uses OpenAI's API for transcription and analysis. We trust their enterprise data policy: 30-day retention for abuse monitoring, no training, then deletion. We don't see, store, or share your recordings.

Take Knack with you

Install Knack as an app — faster open, full-screen, ready when you need a sharper ear.

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