LEGIS: US Law & Legal Research

The US law library that works without a signal. Search statutes, regulations and 11 million court opinions, ask the on-device AI, and get the exact section with a citation you can tap. Everything stays on your iPhone.

Built for attorneys, law students, paralegals and anyone who needs the actual text of the law, fast.

ASK A QUESTION. GET THE STATUTE.
Type a question in plain English: "What does 42 U.S.C. § 1983 say?" or "Which federal rules cover data privacy?" The AI assistant runs entirely on your device and answers with sources from the built-in library. Every answer shows you where it comes from, so you can read the primary law yourself. No queries leave your phone.

11 MILLION+ DOCUMENTS, ONE SEARCH
• US Code: every title of federal statutory law
• Code of Federal Regulations: all active titles, organized by agency
• Supreme Court: 940,000+ opinions, from the founding to today
• Federal courts: 10 million+ circuit and district court opinions
• Congress: bills and resolutions from the 118th and 119th Congress
• Federal Register: rules, proposed rules and agency notices
• State statutes: growing coverage, state by state

Search everything at once or filter by statutes, cases or Congress. Results are ranked by relevance and highlight the passage you are looking for, across millions of documents in about a second.

EVERY CITATION IS A LINK
"42 U.S.C. § 1983", "21 CFR § 314.50", "Brown v. Board of Education": LEGIS recognizes citations in the text and turns them into links. Tap to jump to the source, then keep going. Build your research chain without copying, pasting or losing your place.

WORKS IN AIRPLANE MODE
Download the libraries you need once. After that, search, reading and the AI assistant work with no connection at all. In the courtroom, on a flight, in a rural county office or anywhere phones are restricted.

PRIVATE BY DESIGN
No account. No tracking. No analytics. No ads. No third-party SDKs. Your searches and questions never leave your device, which matters when you research criminal defense, employment disputes, whistleblower cases or anything confidential.

MADE FOR THE WAY LAWYERS WORK
• Browse the US Code by title, the CFR by agency, cases by court and date
• Bookmark the sections you return to
• A to Z index for fast navigation in long lists
• Clean, readable text sized for the phone

WHO USES LEGIS
• Solo practitioners and small firms who need primary law without an enterprise research contract
• Law students reading cases and preparing for the bar exam
• Paralegals checking citations and pulling statutes
• Self-represented litigants who want to read the law themselves
• Journalists, compliance teams and policy researchers

FREE AND PRO
Free: full search, browsing and reading for every library you download.
LEGIS Pro: the on-device AI assistant, bookmarks and every feature we add next.
LEGIS Pro is an auto-renewing subscription. Manage or cancel it anytime in your Apple Account settings.

TRUSTED SOURCES
All content is primary, public domain law (17 U.S.C. § 105). Statutes and regulations from the Government Publishing Office and eCFR.gov, case law from CourtListener by the Free Law Project. No proprietary headnotes, no paraphrased summaries: the actual text.

IMPORTANT
LEGIS is a research tool, not a law firm, and does not give legal advice. Always verify citations against official sources before relying on them in a proceeding. LEGIS is not affiliated with any court, legislature or government agency.

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