On-device case-evidence search for Mac litigators
Drop a case folder in and search every deposition video, hearing recording, scanned PDF and photo in one place — every answer cited to page:line or timestamp. Everything stays on your Mac.
macOS · Apple Silicon · 7-day free trial with a sample case · no account
There is nothing to subpoena from us, because we never have your evidence.
Bar guidance and the courts increasingly treat uploading a client's evidence to a cloud AI service as a documented ethics and privilege problem. Adduce is the on-device answer: indexing, transcription and search all run on your Mac, it works with Wi-Fi off, and the built-in Privacy Center shows a live “Offline-clean” network monitor you can demonstrate to a partner — or opposing counsel — with the network cable pulled.
What it does
Depositions, hearing audio, scanned productions, photos and message exports — one index, one search box, every hit traceable to its exact page or second.
Search every source in a matter at once, in keyword or semantic mode, filtered by source type and file. Search is the first thing you see.
Video and audio are searchable by spoken content. A hit opens the player at the exact timecode — no more scrubbing six hours of testimony.
Ask a question in plain language and get an answer drawn from the whole matter — depositions, testimony and documents together — with citations that open at the page or timecode. Answers are checked against the record after they're written: anything the sources don't support is flagged, not presented as fact. “I can't find that in the record” is a real answer.
Summarize any source into its most central passages — returned verbatim, in order, each with its own citation. No model rewrites the words, so every bullet is a real span you can quote.
Adduce separates voices in a deposition automatically, but automatic attribution is a starting point, not evidence — on our own benchmark it puts roughly one segment in three with the wrong person. So unconfirmed speakers are marked as unverified, and you rename them (Witness, Counsel, a real name) per source. Speaker names are never part of a citation's locator, so a wrong label can't corrupt a cited fact or an export.
Document hits open the viewer at the page with the matched region highlighted. Drag-select an exact phrase to cite it.
Turn any span into a fact with an immutable, provenance-locked quote and a page:line or timestamp locator. The quote can't be edited — only its metadata.
Facts assemble into a dated timeline for depo prep and mediation. Star sources and spans into a case exhibit list.
Face clusters and extracted names, orgs, dates and amounts scoped to the case. Name a person once, find every appearance.
Every source is fingerprinted at import. One click re-hashes it to prove the file behind a citation hasn't changed.
Export a chronology or cited memo as a Word document (or Markdown), and your fact table or exhibit list as CSV — each behind a “Reviewed — export” attorney gate, with an audit log of what left the app.
A live outbound-traffic monitor labeled “Offline-clean,” plus a storage view, an audit trail, and an irreversible one-click case purge. It also reads your Mac's real FileVault status, so you can see — not assume — that the disk holding your index is encrypted. Backups are encrypted with a key held in the macOS Keychain.
How it works
Drag a folder or files onto the case. An import report shows what will be indexed, what's unsupported, and roughly how long it will take.
It transcribes, OCRs and indexes in the background with honest per-source progress and a live ETA — cancel any file, and it retries the ones that stumble.
Type a query, get grouped results across video, audio, documents and images — each with the matched span highlighted. Press Enter to open at the exact spot.
Select a span → add a fact, quote and locator captured automatically. Build the chronology, then export behind the review gate.
Honest scope
Adduce is case intelligence over the working set you already have — a complement to tools like GoldFynch, and a replacement for manual re-listening and ⌘F across dozens of PDFs. It is not an e-discovery platform, and we don't pretend otherwise.
Pricing
The tools built for this job bill by the year, the case, or the seat. Adduce is a flat monthly subscription that runs entirely on your Mac — cancel anytime.
Adduce for Mac
Comparison of list prices for adjacent tools; Adduce is not an e-discovery platform and is priced for the solo and small-firm Mac litigator.
FAQ
Install Adduce, drop in a case folder, and search your first deposition before the coffee's cold.