eDiscovery for the Apple Silicon Era.

Transcribe depositions, identify speakers, and search across cases. 100% offline. Zero cloud uploads.

Rough draft transcripts in minutes, not days.

Available on the Mac App Store $99 one-time purchase
SoundProof Legal running on MacBook Pro - showing video transcription with speaker identification

Built for Legal Workflows

Everything you need to process audio and video evidence.

Instant Full-Text Search

Search across all your transcripts in milliseconds. Find exactly where a witness said "I don't recall" across 50 depositions.

Speaker Identification

Automatically distinguish between speakers. Color-coded transcripts with editable speaker labels. Rename "Speaker 1" to "Witness" with one click.

Screen Text Recognition

OCR automatically extracts on-screen text from video evidence. Searchable text from presentations, documents, and exhibits shown on screen.

Case Organization

Organize documents into cases. Search within a single case or across your entire library. Keep matters separate and organized.

Timestamped Transcripts

Every word is timestamped. Click any segment to jump to that exact moment in the recording. Perfect for citation and review.

eDiscovery Export

Export Relativity and Concordance load files (.dat), CSV, SRT subtitles, or VTT. Bulk export with configurable document numbering. Ready for your review platform.

190x Faster Than Real-Time

Powered by Apple's Neural Engine, SoundProof transcribes a 1-hour recording in under 20 seconds on M4 Pro. Batch import an entire case worth of recordings and go grab coffee.

~20s

to transcribe 1 hour of audio

Unlimited

files, no per-minute fees

Drag & Drop Import

Drop multiple files at once

Variable Playback Speed

0.5x to 2x with synced highlighting

Confidence Indicators

See transcription accuracy scores

Unified Timeline

Speech + screen text in one view

Available Now on the Mac App Store

Get SoundProof Legal

One purchase. Unlimited transcription. No subscriptions, no per-minute fees, no cloud uploads.

$99 one-time purchase

Download on the Mac App Store

Requires a Mac with Apple silicon (M1 or later). macOS 26 or newer.

Built for Attorney-Client Privilege

Unlike cloud transcription services, SoundProof runs entirely on your Mac. Sensitive depositions, witness interviews, and confidential recordings stay where they belong.

  • Optimized for Apple Silicon (M1/M2/M3/M4)
  • Works offline after initial model download
  • Your data never leaves your device

Zero Data Leaks

100% offline processing

Cloud uploads None
Third-party APIs None
Data retention by vendors None
Your control over data Complete

Stop Paying Per Minute

One purchase. Unlimited transcription. Forever.

Cloud Transcription

$1-3/minute

  • Uploads to third-party servers
  • Per-minute or subscription fees
  • Data retention policies
  • Requires internet connection

1 hour deposition = $60-180

Best Value

SoundProof Legal

$99 once

  • 100% offline processing
  • Unlimited files forever
  • Zero data retention concerns
  • Works offline after setup

Pays for itself in your first case