AI Writing Tools

ProWritingAid vs Grammarly

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

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

Which should you choose?

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

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

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.