Best Legal Research Tool Apps

248+ iOS apps curated and reviewed

3.8 avg rating
20 free apps
Updated September 2026

If you already know Westlaw, this is the deeper bench. 248+ legal research tool apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Legal Research Tool Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1WestlawWestlawFree2.3★ (121)NoNoAug 2026
2FastcaseFastcaseFree2.4★ (72)NoNoMay 2026
3JUDY - Legal Research PlatformJUDY - Legal Research PlatformFree3.3★ (3)NoYesSep 2026
4Lexis+® MobileLexis+® MobileFree2.3★ (8)NoNoSep 2026
5Vincent by ClioVincent by ClioFree4.8★ (20)NoNoSep 2026
6Legal Eagle AILegal Eagle AIFreeNoNoJul 2026
7LegalDeep AI Legal AssistantLegalDeep AI Legal AssistantFreeNoYesSep 2026
8Lexis®Lexis®Free3.8★ (5)NoNoMay 2026

Top Picks for Legal Research Tool

2.3(121 ratings)
Free
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Access a comprehensive legal research service on your mobile device. Continue research started elsewhere, anytime, anywhere, with features like WestSearch and KeyCite. Save documents for offline access and share them via email, print, or download.

Fastcase#2

Fastcase by Fastcase

Strong Contender
🔍 Reference
2.4(72 ratings)
Free
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Access a comprehensive, free mobile law library containing cases and statutes from all 50 states and the federal government. Search by citation, keyword, or browse statute collections with smart search technology for relevant results. Save favorites and research history for on-the-go legal research.

3.3(3 ratings)
Free
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This platform provides a comprehensive law reporting service to support legal professionals. It aims to streamline legal research by digitizing and organizing case judgments from common law countries, particularly in Africa, where such resources are often fragmented or inaccessible. The goal is to reduce the time spent on research and improve access to legal precedent.

More Legal Research Tool apps to explore

FAQ about Legal Research Tool

What are the best legal research tool apps for iPhone?
Westlaw tops our legal research tool apps ranking as of September 2026, with a 2.3-star average from 121 App Store ratings, and it's free to download.
Yes — 20 of the top legal research tool apps we rank are free to download, including Westlaw and Fastcase.
Westlaw has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 248+ legal research tool apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides access to a leading legal research service on your mobile device. It allows you to conduct comprehensive legal research, access case law, statutes, and other legal documents, and utilize advanced search and citation tools.
Key features include WestSearch for powerful searching, KeyCite for checking the validity of citations, search filters, folders for organizing research, notes and highlighting, and the ability to save documents for offline access. Documents can also be shared via email, print, or download.