AI Writing Tools

Grammarly vs ProWritingAid

Both are ai writing tools. The short answer: choose Grammarly if you are anyone writing emails, proposals and blog posts in English; choose ProWritingAid if you are authors, students and professionals editing long documents.

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Grammarly logo GrammarlyProWritingAid logo ProWritingAid
Best forAnyone writing emails, proposals and blog posts in EnglishAuthors, students and professionals editing long documents
Free planYesYes
PricingSee providerSee provider
Built for IndiaGlobalGlobal
CategoriesAI Writing Tools, AI Email & Outreach ToolsAI Writing Tools
Strengths
  • Works in browsers and apps
  • Free grammar checks
  • Tone suggestions
  • In-depth style reports beyond basic grammar
  • Works in Word, Google Docs and browsers
  • Lifetime licence available
Watch out for
  • Generative features limited on free plan
  • Interface can feel busy
  • Free version limits words per check
Visit GrammarlyVisit ProWritingAid

Which should you choose?

Grammarly: AI writing assistant for grammar, clarity, tone and generative rewrites across apps.

ProWritingAid: Grammar checker and style editor that produces detailed reports on readability, overused words, sentence variety and consistency.

The best way to decide is to run the same week of real work through both — most offer a free plan or trial — and compare how long tasks take, what your team prefers, and the total cost for your number of users including renewal pricing.

Not sure either fits? See all ai writing tools compared.