Built for legal practice
Client communications stay on your device
Kajo Voice transcribes on-device on your Mac, Windows, or Linux machine. No audio, no transcript, no AI summary is uploaded to any server. Privileged communications never leave your hardware — there is no third-party custodian.
DPA and privacy attestation for your firm
After Lifetime purchase, execute a GDPR-compliant Data Processing Addendum — template at /legal/dpa, request via privacy@kajovoice.com. Audio and transcripts never leave the device by architecture; see /trust and /security, or request a privacy attestation by email. Translation, summaries, and chat all run on-device — there is no cloud-processing path. Consult your data protection officer for jurisdiction-specific requirements.
Lifetime convenience surfaces
Lifetime unlocks unlimited imports plus watch folders and batch export. Per-file transcript export (Markdown, JSON, DOCX, QDPX, and more) is available on Free within the allowance. For DPA and compliance documentation, contact privacy@kajovoice.com.
Multilingual legal transcription
Transcribes 98 languages on your laptop — all on-device. International arbitration, cross-border transactions, and multilingual depositions are handled locally. Translation runs on-device with Gemma 4 — offline, with no cloud translation path.
Kajo vs cloud transcription tools for lawyers
| Feature | Kajo | Otter.ai | Rev |
|---|---|---|---|
| On-device (no audio upload) | ✅ | ❌ | ❌ |
| Content stays on your machine | ✅ | ❌ Hosted on AWS in the United States; no EU residency option | ❌ Cloud |
| DPA available | ✅ On request after Lifetime | ✅ Data Processing Attachment built into the Terms of Service (Appendix 1) | ✅ Published Data Processing Addendum for all customers |
| Privacy by architecture (no cloud path) | ✅ | ❌ | ❌ |
| Watch folders & batch export | ✅ Lifetime | ❌ | ❌ |
| Transcription languages | 98 | 6 languages (English, Spanish, French, German, Japanese, Simplified Chinese) | 57+ languages (Rev AI async API) |
| Works fully offline | ✅ | ❌ | ❌ |
| One-time payment (no subscription) | ✅ $49 once | ❌ | ❌ |
Setting up Kajo for your law firm
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Download Kajo for Mac, Windows, or Linux at /download — free, no account required.
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Unlock Lifetime ($49 one-time) for unlimited imports, watch folders, and batch export.
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Request your DPA via privacy@kajovoice.com after Lifetime purchase (template: /legal/dpa). Everything runs on-device — no cloud regions to configure, no client content leaves your machine.
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Import your first client meeting or deposition recording — drop the file in, or point a Lifetime watch folder at your recorder export directory.
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Review the on-device summary and export the transcript to your preferred folder.
Attorney-client privilege and AI tools: the data custody question
Most AI transcription services upload your audio to cloud servers. Under most jurisdictions’ attorney-client privilege rules, transmitting confidential client communications to a third-party cloud provider — even a service provider — creates privilege waiver risk. The question of whether a cloud transcription service constitutes a “necessary agent” under the Kovel doctrine is unsettled and jurisdiction-dependent. Kajo eliminates the question entirely by keeping all audio and transcripts on your local device. There is no third-party cloud custodian to worry about, no subpoena target other than your own machines, and no data custody chain that a sophisticated opposing counsel can challenge.