SiteList review score
Concrete document and spreadsheet examples make the product easy to understand. Improve the mobile critical path, where the homepage takes 7.3 seconds to show its largest content.
Reviewed on Oct 9, 2026
Signal87
signal87.ai
Unclaimed listingWhat it does
Signal87 is a web-based enterprise document memory and legal AI research platform that lets users upload contracts, reports, spreadsheets, and other documents, ask questions in plain language, compare files, analyze spreadsheet data, and receive answers and reports with citations to source pages and paragraphs.
Two ratings
Verified user rating
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No verified reviews yet — the evidence locker is empty.
Screenshots
Captured during our latest review on Oct 9, 2026
Pricing details
Monthly plans: 100 Documents for $20/month and Unlimited for $50/month. Billed monthly. free trial (5 days) · Start free for 5 days; no card needed to start.
| Plan | Price | Details |
|---|---|---|
| 100 Documents | $20 monthly per 100 documents | For individuals working across a focused set of files. 100 documents View source |
| Unlimited | $50 monthly per unlimited documents | For teams whose work lives in documents. Unlimited documents View source |
Key features
Document search
Document intelligence
Search across uploaded documents or focus on selected files.
Citation-backed answers
Document intelligence
Answers include supporting quotations and citations to the source files.
Document comparison
Document intelligence
Compare documents and summarize changes with sources.
Sourced reports
Document intelligence
Prepare and save reports that can be revisited while work continues.
Spreadsheet analysis
Spreadsheet analysis
Count, total, and rank original spreadsheet cells in code and explain the results in plain English.
Multi-format file upload
Document intake
Upload PDFs, Word documents, and Excel spreadsheets.
Who it’s for
Legal research
Research and compare contracts and other legal documents with citations.
Compliance research
Investigate questions across documents for compliance work.
Real estate document analysis
Analyze leases, rent rolls, and related property documents.
Legislative and policy research
Support document research for legislative and enterprise policy teams.
Corporate governance
Research documents used in corporate governance work.
Buyer questions
Questions buyers actually ask
Who is Signal87 for?
Signal87 is aimed at legal, compliance, real-estate, legislative, and corporate-governance teams working across complex documents.
What does Signal87 cost?
The supplied site facts list Signal87 as a paid product with a price range of USD 20–50.
What is the biggest weakness?
Mobile performance is the clearest weakness: the homepage took 7.3 seconds to show its largest content in the mobile lab run, versus 1.3 seconds on desktop.
How accessible is the site?
The site has a generally strong semantic baseline, and one PSI run reported an accessibility score of 86/100.
Answers are based on SiteList's latest evidence review. Read the full review.
The expert review
Signal87 scores 72/100 as a focused document-intelligence SaaS for legal, compliance, real-estate, and governance teams. Its strongest asset is concrete, citation-backed product evidence, while its most material weakness is a 7.3-second mobile largest-content result.
72/100: focused product with a mobile performance gap
Verified user reviews
0 verifiedNo reviews yet. The evidence locker is empty.
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Reviews are from the SiteList community. Some reviewers received incentives — disclosed in the review, always. The verdict is never for sale.
Scores across 13 dimensions
Brand & experience
Performance
Content & editorial
Trust & decision surfaces
Search & discoverability
Docs & measurement
- Domain
- signal87.ai
- Category
- Legal practice management
- Pricing
- Paid · $20–$50/mo
- Platforms
- web
- Founded
- 2025
- Last checked
- Oct 9, 2026
- Public dimensions
- 13
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