Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Grammar Checkers

Grammarly vs ProWritingAid

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Grammarly #1 in Grammar Checkers 9.4/10 Free plan Free plan✓ 5 of 5 features Visit Grammarly
ProWritingAid #5 in Grammar Checkers 8.5/10 Free plan Free plan✓ 3 of 5 features Visit ProWritingAid

Grammarly leads on 2 checks, ProWritingAid on 0, and 5 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGrammarly · 9.4/10
  • Free planboth
  • Most featuresGrammarly · 5 of 5

Grammarly scores higher on our rubric for grammar checkers: 9.4 against 8.5 out of 10; our editors rank them #1 and #5.

Grammarly offers mobile app; ProWritingAid doesn't. Grammarly leads on languages supported: 24 versus 1.

Grammarly is the better fit for broad, polished grammar and writing support. ProWritingAid is the better fit for writers who want detailed analysis reports.

  • Grammarly fits best

    Broad, polished grammar and writing support

  • ProWritingAid fits best

    Writers who want detailed analysis reports

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Grammarly 9.4/10 Visit ↗ ProWritingAid 8.5/10 Visit ↗
At a glance
Editor score 9.4 8.5
Ranking #1 in Grammar Checkers #5 in Grammar Checkers
Best for Broad, polished grammar and writing support Writers who want detailed analysis reports
Pricing model Free plan + paid Free plan + paid
Starting price $12/user/mo $120/yr
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile, Browser extension Cloud, Desktop, Browser extension
Platforms Web, Windows, macOS, iOS, Android, Chrome extension Web, Windows, macOS, Chrome extension
Support Docs Email, Docs
Compliance SOC 2, ISO 27001, HIPAA, PCI DSS, SSO/SAML, 2FA SOC 2
Integrations 8 integrations 12 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Grammarly 5/5 · ProWritingAid 3/5
Browser extension ✓ ✓
Desktop app ✓ ✓
Mobile app ✓ (best) —
Style suggestions ✓ ✓
Tone detection ✓ (best) Not checked yet
Specs
Languages supported 24 (best) 1
Our review
Pros
  • Checks grammar, spelling, clarity, fluency, style, tone, and punctuation
  • Works across web, desktop, mobile, browser extensions, and major business apps
  • Pro adds rewrites, plagiarism checks, AI detection, and team writing controls
  • 25+ reports analyze structure, repetition, readability, and style
  • Custom guides, tone detection, and rephrasing support focused editing
  • Works across web, desktop apps, browsers, and major writing tools
Cons
  • The Free plan includes 100 AI prompts per month
  • The listed Pro price requires annual billing
  • Enterprise pricing requires contacting sales
  • No mobile app for editing on phones or tablets
  • Free plan limits documents to 500 words
  • English is the supported language, with regional dialect settings
Our verdict

Grammarly is an AI-powered writing assistant for individuals, professionals, teams, and educational users. It checks grammar, spelling, punctuation, clarity, fluency, wordiness, style, and tone across its online Editor, desktop…

Read the review →

ProWritingAid is a grammar and writing analysis toolkit for creative writers, business professionals, and students. It checks grammar, spelling, punctuation, style, and readability, then adds more than 25 reports for examining structure,…

Read the review →
  1. GrammarlyGrammar Checkers 9.4Free plan
  2. ProWritingAidGrammar Checkers 8.5Free plan

Strengths and trade-offs

  • Grammarly — where it wins

    • Checks grammar, spelling, clarity, fluency, style, tone, and punctuation
    • Works across web, desktop, mobile, browser extensions, and major business apps
    • Pro adds rewrites, plagiarism checks, AI detection, and team writing controls

    Where it doesn't

    • The Free plan includes 100 AI prompts per month
    • The listed Pro price requires annual billing
    • Enterprise pricing requires contacting sales

  • ProWritingAid — where it wins

    • 25+ reports analyze structure, repetition, readability, and style
    • Custom guides, tone detection, and rephrasing support focused editing
    • Works across web, desktop apps, browsers, and major writing tools

    Where it doesn't

    • No mobile app for editing on phones or tablets
    • Free plan limits documents to 500 words
    • English is the supported language, with regional dialect settings

More comparisons

All grammar checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update