Grammarly
VS
ProWritingAid
Grammarly vs ProWritingAid: Which Writing Tool is Best in 2026?
Grammarly and ProWritingAid are two of the most popular AI writing assistants. Compare their grammar checking, style analysis, integrations, and pricing.
Our Pick: Grammarly
Quick Comparison
| Feature | Grammarly | ProWritingAid |
|---|---|---|
| Starting Price | $12/mo (annual) | $10/mo (annual) |
| Free Plan | Yes (basic grammar) | Yes (limited reports) |
| Best For | General writing | Fiction & long-form |
| Browser Extension | Yes (all browsers) | Yes (Chrome, Firefox) |
| Writing Reports | Basic analytics | 25+ detailed reports |
| Plagiarism Check | Yes (Premium) | Yes (Premium) |
| AI Generation | Yes (GrammarlyGO) | Limited |
| Rating | 4.5/5 | 4.3/5 |
Writing Analysis
Grammar Checking
Grammarly
Best-in-class accuracy
ProWritingAid
Very good, comprehensive
Style Analysis
Grammarly
Tone, clarity, engagement
ProWritingAid
25+ style reports (pacing, dialogue, etc.)
Readability Score
Grammarly
Built-in
ProWritingAid
Multiple readability formulas
Sentence Structure
Grammarly
Good suggestions
ProWritingAid
Detailed structure analysis
Features
Integrations
Grammarly
500K+ apps via browser extension
ProWritingAid
Web, Word, Google Docs, Scrivener
Genre-specific
Grammarly
General writing goals
ProWritingAid
Fiction, academic, business modes
AI Writing
Grammarly
GrammarlyGO (generative AI)
ProWritingAid
Basic rephrasing suggestions
Team Features
Grammarly
Style guides, brand tones
ProWritingAid
Snippet library, house style
Pricing
Free Plan
Grammarly
Basic grammar & spelling
ProWritingAid
Limited reports (500 words)
Premium (Monthly)
Grammarly
$30/mo
ProWritingAid
$30/mo
Premium (Annual)
Grammarly
$12/mo ($144/yr)
ProWritingAid
$10/mo ($120/yr)
Lifetime
Grammarly
Not available
ProWritingAid
$399 one-time
Our Recommendation
Choose Grammarly for everyday writing across apps and browsers. Choose ProWritingAid if you're a novelist, academic writer, or want detailed writing analysis with a lifetime deal option.