✍️ AI for Writers

Grammarly vs ProWritingAid

A side-by-side comparison of Grammarly and ProWritingAid for writers — pricing, features and where each one earns its place.

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GrammarlyProWritingAid
TaglineThe ubiquitous AI assistant for grammar, clarity and tone, everywhere you type.All-in-one grammar, style and manuscript editor with AI rewrites.
Editorial rating★★★★⯨4.5editorial★★★★☆4.4editorial
PricingFree; Pro US$12/mo (annual)Free; Premium US$30/mo (lifetime from US$399)
Free tierYesYes
Good forCopywriting, Academic, Blogging & SEO, FictionFiction, Copywriting, Academic
CategoriesGrammar, EditingEditing, Grammar
ModelsProprietary + AIProprietary + AI
Platformsweb, desktop, browser-ext, mobile, word, docs, apiweb, desktop, browser-ext, word, docs

Grammarly

Pros

  • Widest app and platform coverage of any checker
  • Strong tone and clarity feedback
  • Reliable real-time correction

Cons

  • Large monthly-vs-annual price jump
  • Pro AI prompts are capped (2,000/mo)
  • English-focused
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ProWritingAid

Pros

  • Deep, fiction-friendly revision reports
  • Lifetime pricing option exists
  • Integrates into most writing apps

Cons

  • Feature overload for beginners
  • Real-time checks can lag on long docs
  • Best reports are behind Premium
Visit ProWritingAid

Our verdict

Grammarly edges ahead on our editorial score (4.5 vs 4.4), largely for widest app and platform coverage of any checker. That said, ProWritingAid is the better pick if deep, fiction-friendly revision reports matters more to you.

Frequently asked questions

Is Grammarly or ProWritingAid better?
In our editorial assessment Grammarly scores 4.5/5 versus ProWritingAid's 4.4/5. Grammarly stands out for widest app and platform coverage of any checker, while ProWritingAid is worth a look for deep, fiction-friendly revision reports. The right choice depends on your workflow — see the breakdown above.
Do Grammarly or ProWritingAid have a free version?
Both Grammarly and ProWritingAid offer a free tier. You can start there before committing to a paid plan.

Read the full reviews: Grammarly · ProWritingAid · all comparisons