No. 23 of 25 ·AI Readability Checkers

VT Writer

Web · Windows · Linux · Self-hosted

Freedom report

Two barsScore 5.1

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

VT Writer is ranked #23 of 25 in AI readability checkers on Freedom251. It runs on Linux, Self-hosted, Web, Windows. There is no free plan. A free trial is offered.

VT Writer plans and pricing

All plans

VisibleThread subscription Not published Annual subscription; per user; price tailored to organization and deployment Set number of users · Unlimited content analysis across both platform products · Training and one-off setup costs may apply visiblethread.com · 3 Oct 2026

Compared on AI readability checkers

Free plan: No
Grade-level analysis: Yes
Sentence complexity: Yes
Plain-language rewrites: Yes
Input formats: document

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The record

Product scope: VisibleThread is an RFP platform for proposal, capture, and contracts teams to analyze solicitations, manage responses, and support work from opportunity discovery through contract delivery.
Writing analysis: VT Writer analyzes documents for readability, grade level, grammar, passive voice, and jargon, and can score writing against custom and fundamental style guidelines.
Document review: Users can upload documents for scoring and review, or email attachments to a dedicated address to receive analysis and document scores by email.
Recommendations export: VT Writer can export recommendations into Microsoft Word for review and navigation.
Other workflow capabilities: The free trial page describes opportunity search, solicitation analysis, automated compliance matrices, FAR/DFAR clause analysis, contract version comparison, and AI-assisted drafting grounded in prior work.
Integrations: The platform connects to SAM.gov, GSA eBuy, UK Find a Tender, and SharePoint.
SharePoint controls: The SharePoint integration respects existing permissions, automatically re-indexes collections after document updates, and states that content is not used to train a model.
Deployment: Deployment options include VisibleThread-managed public cloud, US GovCloud, customer-hosted private cloud, and customer-hosted on-premises installations, including air-gapped environments.
Security: The maker describes its US GovCloud offering as hosted in AWS GovCloud (US), aligned with CMMC 2, FIPS, NIST SP 800-171 and CUI requirements, with FIPS 140-2 encryption and U.S. citizen support.
Support: Technical support is included in the license fee, with ticketing, first- and second-line support, an SLA for customers, and an online support forum.
Intended customers: The maker positions the platform for government contractors and regulated industries, including defense and space, IT services, healthcare, engineering and construction, and financial services.
Trial terms: The trial page says no credit card is required but does not state a trial duration.
Company history: VisibleThread says it has served government contractors since 2008.
Founded: 2008

Where it ranks on Freedom251

Best AI Readability Checkers in 2026#23 of 25

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Sources

visiblethread.com/freetrial/· checked 3 Oct 2026
visiblethread.com/features/· checked 3 Oct 2026
visiblethread.com/integrations/· checked 3 Oct 2026
visiblethread.com/security/· checked 3 Oct 2026
visiblethread.com/pricing/· checked 3 Oct 2026
visiblethread.com/company/about-us/· checked 3 Oct 2026