Lysias

Lysias

Privacy Policy

Effective September 1, 2026

Lysias is a writing tool, and what you write is yours. Your briefs, memos, authorities, and settings live in files on your Mac. Lysias has no accounts, no analytics, no telemetry, and no servers of its own. We never see your documents, and we never see you.

What Lysias does not do

What stays on your Mac

Everything. Your projects are ordinary files you choose where to keep. Snapshots of your drafts, the text of authorities you fetch, your styles, your dictionary, and your preferences are all stored locally. If you enter an API key for a legal-data service (see below), it is kept in the app's private container on your Mac and sent only to that service.

When Lysias talks to the internet

Lysias contacts the network in exactly one situation: when you ask it to fetch the text of a legal authority. Those requests go directly from your Mac to public legal-data services, and they carry only the citation being looked up — never your documents, never anything about you beyond what any web request discloses (such as your IP address, which those services handle under their own policies):

Fifteen state codes are published where the app can't go and get them — through LexisNexis, as PDFs, or behind a wall that answers a browser and refuses a program. For those, Lysias offers a link and a box to paste the text into. The link opens in your browser, and Lysias is not part of that visit: it makes no request to those sites, and it is not told what you read there. Pasted text is your own text, kept in your project like any other source, and sent nowhere.

The same is true of anything else you have and we can't fetch — a case the archive doesn't carry, a page of the record, a passage of an article. You can paste it in, and whatever the text counts for itself is read out of it: a reporter's star pagination, a transcript's page and line. Nothing about that text reaches us.

If you never fetch an authority, Lysias never makes a network request. The United States Constitution ships inside the app, so citing it needs no network at all.

Purchases

The one-time unlock is processed entirely by Apple through the Mac App Store. Apple's payment system tells Lysias only that this copy is unlocked; we receive no name, no payment details, and no personal information of any kind. Apple's handling of your purchase is governed by Apple's privacy policy.

Links that open in your browser

Lysias can hand a citation to Westlaw, Lexis, or Google Scholar as a convenience. Those open in your web browser, outside the app, and are governed by those services' own policies.

Changes

If this policy ever changes, the change will be posted on this page with a new effective date. Since Lysias collects nothing, we expect it to stay short.

Contact

Questions about this policy: support@lysiasapp.com.