ProWritingAid

Freemium

AI-powered writing assistant offering grammar checking, style improvement, readability analysis, and in-depth writing reports. Integrates with Word, Google Docs, Scrivener, and browsers.

4.4
out of 5.0 · 1,100+ reviews
Category Writing
Platform WebmacOSWindowsChrome Extension
Last Updated April 14, 2026

Overview

ProWritingAid is a comprehensive AI writing assistant that goes beyond basic grammar checking to offer deep style analysis, readability scoring, and over 20 writing reports covering everything from sentence structure to pacing. It's particularly popular with authors, academics, and long-form content writers.

What sets ProWritingAid apart from competitors like Grammarly is its depth of analysis. The platform provides detailed reports on overused words, sentence length variation, dialogue tag distribution, transition usage, and readability scores — making it a serious craft improvement tool, not just a spell checker. The AI-powered suggestions explain why changes are recommended.

ProWritingAid integrates with Microsoft Word, Google Docs, Scrivener, and all major browsers. The lifetime plan option makes it uniquely affordable for long-term use compared to subscription-only competitors.

Pricing

Free
$0 /mo
  • 500-word limit per check, limited daily suggestions, basic grammar and style checks
Premium
$30 /mo
  • Unlimited word count, all 20+ writing reports, browser extension, and integrations
  • Annual plan at $120/year (save 67%)
Premium Pro
$36 /mo
  • Everything in Premium plus AI-powered rephrasing, tone detection, and advanced rewriting tools
  • Annual at $144/year
Lifetime Premium
$399 /mo
  • All Premium features with no recurring payments — lifetime access
Lifetime Premium Pro
$699 /mo
  • All Premium Pro features with lifetime access

Pros & Cons

Pros

Twenty-plus writing reports provide deeper analysis than any competitor
Lifetime plan option eliminates recurring subscription costs entirely
Scrivener integration makes it ideal for book authors and novelists
Readability and pacing reports genuinely help improve writing craft
Explains the reasoning behind each suggestion for learning

Cons

Free tier limited to 500 words makes it impractical for real evaluation
Interface feels dated compared to Grammarly's polished design
Report depth can overwhelm casual writers who just need grammar fixes
Real-time suggestions are slower than Grammarly in browser extension
Less effective for short-form content like social posts or emails

Reviews