Readability vs VT Writer
Readability
readability.adaptive-enforcement-lab.comVT Writer
visiblethread.comSide by side
| Figure | Readability | VT Writer |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 1 |
| Spec score · AI Readability Checkers | 8.2 (#7) | 7.3 (#25) |
| Deployment | It can be installed as a Go command-line tool, run through Docker, added as a GitHub Action, or built from source. | Deployment options include VisibleThread-managed public cloud, US GovCloud, customer-hosted private cloud, and customer-hosted on-premises installations, including air-gapped environments. |
| Headquarters | Switzerland | Dublin, Ireland |
| Integrations | The project provides a GitHub Action and pre-commit hooks, and documents CI/CD examples for GitLab CI, CircleCI, and Jenkins. | The platform connects to SAM.gov, GSA eBuy, UK Find a Tender, and SharePoint. |
Plans
In their own words
Readability
Readability analyzes Markdown files and reports measures of reading complexity. It provides grade level, reading ease and estimated reading time calculated at 200 words per minute. The listed grade-level formulas are Flesch-Kincaid, Gunning Fog, Coleman-Liau, SMOG and ARI. It also measures word and sentence metrics and can detect or require MkDocs-style admonitions. Results can be produced as a table, Markdown, JSON, summary or report. Configurable thresholds can fail CI checks when documentation exceeds them, and a.readability.yml file supports path-specific overrides. The project documents a Go command-line tool, Docker, a GitHub Action and pre-commit hooks, alongside CI/CD examples for GitLab CI, CircleCI and Jenkins. Pre-built binaries are listed for Linux and macOS in amd64 and arm64, and Windows in amd64. The project identifies its license as MIT and lists no paid plans. Its documentation cautions that scores measure word and sentence complexity, not accuracy, completeness, context or tone.
VT Writer
VT Writer has no write-up on Specifiction yet; its figures are above.