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.

Join the Waitlist $29 one-time purchase
SoundProof Legal

App Screenshot

Drag, drop, discovery.

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.

Flexible Export

Export to plain text, timestamped text, SRT subtitles, or VTT. Ready for your document review platform or video editing software.

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

Coming Soon to the Mac App Store

Be the First to Know

SoundProof Legal is currently in App Store review. Join the waitlist to get notified the moment we launch.

$29 one-time purchase. No subscriptions. No per-minute fees.

No spam. We'll only email you when we launch.

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

$29 once

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

Pays for itself in 10 minutes