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Grammarly vs Wordtune

Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.

Grammarly

AI tool · Freemium

A writing assistant for grammar, clarity and tone, with generative AI features, working across many apps and browsers.

Wordtune

AI tool · Freemium

AI21's rewriting assistant that suggests alternative phrasings, tones and lengths as you write.

Our verdict

Grammarly is a broad writing assistant that catches grammar, clarity and tone issues across many apps and platforms, with generative rewrites as an add-on. Wordtune focuses on sentence-level rewriting: it offers alternative phrasings, tones and lengths as you write, but has tighter free daily limits and fewer platforms. Choose based on whether you want error checking everywhere or hands-on sentence polishing.

Pick Grammarly if you want proofreading and tone checks across email, documents and many apps and browsers.

Pick Wordtune if you mainly want to rephrase, shorten or adjust the tone of individual sentences in Chrome.

Key differenceGrammarlyWordtune
Core focusGrammar, clarity and tone checking, plus generative rewrites.Sentence-level rewriting: alternative phrasings, tones and lengths.
Where it worksWeb, Chrome, macOS, Windows, iOS and Android; works across apps.Web and Chrome; browser extension only for app coverage.
IntegrationsWorks with Chrome, Google Workspace and Microsoft 365.Works with Chrome and Google Workspace.
PriceFreemium.Freemium, with tight free daily limits.
Best atProofreading everyday writing and checking email tone.Polishing sentences and adjusting tone in your text.

Written with AI from both products' catalogue entries · updated 2026-10-29

Who each one is for

Choose Grammarly if you need…

  • Proofreading everyday writing
  • Tone checks on emails

Choose Wordtune if you need…

  • Polishing sentences
  • Adjusting tone

Side-by-side

GrammarlyWordtune
TypeWriting · Editing & grammarWriting · Editing & grammar
PriceFreemiumFreemium
PlatformsWeb, Chrome, macOS, Windows, iOS, AndroidWeb, Chrome
Works withChrome, Google Workspace, Microsoft 365Chrome, Google Workspace
Hands-on tested by usNot yetNot yet
Last checked2026-10-292026-10-29

What each one is

Grammarly

A writing assistant for grammar, clarity and tone, with generative AI features, working across many apps and browsers. Catches errors wherever you type. Suggestions can flatten a distinctive voice; accept them selectively.

Wordtune

AI21's rewriting assistant that suggests alternative phrasings, tones and lengths as you write. Good for sentence-level polish. Free daily limits are tight.

Best for

Grammarly

  • Proofreading everyday writing
  • Tone checks on emails

Wordtune

  • Polishing sentences
  • Adjusting tone

Strengths

Grammarly

  • Grammar and clarity suggestions
  • Tone detection
  • Generative rewrites
  • Works across apps via extension

Wordtune

  • Rewrite suggestions
  • Shorten and expand
  • Tone changes
  • Browser extension

Frequently asked questions

Should I use Grammarly or Wordtune?

Grammarly is a broad writing assistant that catches grammar, clarity and tone issues across many apps and platforms, with generative rewrites as an add-on. Wordtune focuses on sentence-level rewriting: it offers alternative phrasings, tones and lengths as you write, but has tighter free daily limits and fewer platforms. Choose based on whether you want error checking everywhere or hands-on sentence polishing. Pick Grammarly if you want proofreading and tone checks across email, documents and many apps and browsers. Pick Wordtune if you mainly want to rephrase, shorten or adjust the tone of individual sentences in Chrome.

What is the difference between Grammarly and Wordtune?

Grammarly: A writing assistant for grammar, clarity and tone, with generative AI features, working across many apps and browsers. Wordtune: AI21's rewriting assistant that suggests alternative phrasings, tones and lengths as you write. Grammarly suits proofreading everyday writing, while Wordtune suits polishing sentences.

Are Grammarly and Wordtune free?

Grammarly: Freemium. Wordtune: Freemium.

What are other alternatives to Grammarly and Wordtune?

Other options people compare them with include LanguageTool, ProWritingAid, QuillBot, Hemingway Editor, DeepL.

Keep comparing

Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.