Skip to the shop floor

fastwrite vs StealthWriter

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

fastwrite compared with StealthWriter
Detailfastwrite logo fastwriteStealthWriter logo StealthWriter
What it doesAI writing assistant for academic papers integrated into Microsoft Word Rewrite AI-generated content into natural, human-like writing
StageNot given Not given
FoundedNot given Not given
Based inDE US
Pricing modelFreemium Freemium
PricingNot given Free: 10 humanizations/day, 10 AI scans/day, 1,000 words per input. Starter: $20/mo — 50 humanizations/day, 50 AI scans/day, 5,000 words per input. Plus: $50/mo — 150 humanizations/day, 150 AI scans/day, 5,000 words per input. Pro: $100/mo — 350 humanizations/day, 350 AI scans/day, 5,000 words per i
Key features
  • Search over 20 million scientific papers using natural language queries
  • Upload and chat with PDFs up to 1,000 pages per document
  • AI-powered sentence and paragraph completion in Word with source citations
  • Deep Review evaluation against nine university grading criteria
  • Automatic APA 7 citation formatting
  • Cross-document PDF search within entire project library
  • Connector integration with Claude and ChatGPT
  • Own-sources-only mode restricting generation to personal documents
  • Available on macOS, Windows, and Web App
  • Humanize AI text with light, medium, or aggressive rewrite levels
  • AI detector to scan writing before and after humanization
  • Sentence-by-sentence analysis with color-coded highlights
  • Choose from multiple alternative rewrites for each sentence
  • Fast processing in seconds
  • Support for multiple languages including Spanish, French, German, Italian, Portuguese, Dutch
  • Web-based app with no downloads or installation required
  • Works on desktop, tablet, and mobile browsers
  • Preserves original meaning while improving readability
What makes it different
  • Integrated directly into Microsoft Word workflow without switching applications
  • Prevents plagiarism by automatically inserting citations and suggesting paraphrasing
  • Specifically optimized for academic writing using custom language models
  • Evaluates work against actual university grading criteria with specific improvement suggestions
  • All work remains private and never used for model training
  • Clean, grammatically correct output ready to use as-is
  • Works with any AI tool including ChatGPT, Claude, Gemini, and more
  • Multiple rewrite levels for fine-grained control over output
  • No technical knowledge required to use
  • Faster processing than competitor tools
Community votes00
DR (Domain Rating by Ahrefs)15 +1 (up) since last check58 no change since last check
Trust Flow (Majestic)1713
Citation Flow (Majestic)2740
Referring domains (Majestic)153849

5 details filled in for both companies.

More alternatives to fastwrite More alternatives to StealthWriter

Support