Justinian

Legal AI

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Justinian is the AI-powered regulatory research platform for legal professionals. Built for law firms, government agencies, and corporate legal teams, Justinian provides natural language search, AI-powered analysis, and professional document generation against regulations, statutes, and court opinions. Justinian is enterprise software available exclusively to organizations with an active Vulcan agreement. Account access is provisioned by your organization's administrator. Learn more at vulcan.ai or request a demo at davina@vulcan.ai.

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Justinian 2.1.5 is live with a 157 BILLION records of law and policy. (Sorry about the AI slop video, we've been too busy building the database) The world's largest and fastest growing legal knowledge graph means the world's smartest legal agent. Every row was scraped directly from the primary source and automatically updates via millions of agentic scrapers every 30 minutes. No third parties or rate limits stand between Justinian and the law itself. Here's everything Justinian now navigates: THE FEDERAL CORPUS ▸ 224M regulations (CFR) ▸ 19.775M Federal Register documents ▸ 15.365M agency guidance documents ▸ 5.74M Statutes at Large law sections ▸ 4.165M codified statute sections (U.S. Code) THE STATE CORPUS (all 50 + DC) ▸ 196M agency guidance documents ▸ 150.5M act sections ▸ 112M codified statutes ▸ 94.5M regulations ▸ 52.5M state register documents ▸ 24.85M acts ▸ 20.895M register-derived documents ▸ State bills across all states going back to 2009 THE LOCAL CORPUS ▸ Municipal codes across all 50 states THE COURT RECORD ▸ 13.125B state court records — dockets, opinions, entries, filings THE ADJACENT REGULATORY UNIVERSE ▸ 26.565B public finance records (appropriations, awards, obligations, procurement, campaign finance) ▸ 17.22B CMS health records (provider, claims, enforcement) ▸ 13.125B state court records ▸ 12.32B agriculture records (FSA payments, USDA programs) ▸ 4.76B BLS labor observations ▸ 4.76B policing records ▸ 4.06B K-12 education metrics ▸ 4.025B FERC energy transactions ▸ 3.15B EPA environmental records ▸ 2.835B federal energy grid records ▸ 2.765B FEC campaign finance records ▸ 1.925B federal budget records ▸ 1.505B federal regulation atomic texts (cross-indexed) ▸ 1.365B FCC license records ▸ 1.26B federal payroll records ▸ 1.05B ERISA Form 5500 filings ▸ 945M FEMA disaster records ▸ 910M NFIP flood insurance records PLUS: BTS transportation, FMCSA carrier safety, NHTSA recalls and crashes, EPA SDWA water systems, USDA SNAP, IRS 990 nonprofit filings, CFPB consumer complaints, NLRB labor cases, EEOC charges, FBI UCR, ATF licensee data, NIH RePORTER, DEA registrants, HUD housing, FAA airports, FTA transit, NAIC insurance, BLS labor markets, EIA energy facilities, VA veterans facilities, federal infrastructure approvals, NRCS easements, Census ACS, and more. Every layer of American law, every adjacent regulatory dataset, one agent. Every other legal AI queries someone else's database through an API. Justinian reads the corpus directly — because we built the corpus.

The developer, Vulcan Technologies, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • User Content
    • Search History
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • Vulcan Technologies, Inc.
Size
  • 2.1 MB
Category
  • Business
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Vulcan Technologies, Inc.