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Grammarly vs QuillBot: Which Is Better in 2026?

Side-by-side comparison — pricing, features, strengths and our verdict.

Quick Answer

Grammarly is the better pick for most people — it's best for professionals who want error-free writing in every app and rates 4.5/5 with our editors. Choose QuillBot instead if you need students rewriting and summarizing source material.

Reviewed by Alex Mercer, Founder & Lead Reviewer Last updated:

Comparison table

Compare
GrammarlyAI Writing ToolsVisit Grammarly
QuillBotAI Writing ToolsVisit QuillBot
Best for professionals who want error-free writing in every app students rewriting and summarizing source material
Editor rating 4.5/5 4.1/5
Pricing Free · from $12/mo Free · from $8.33/mo
Pricing model Freemium Freemium
Community upvotes 317 857
Founded 2009 2017
Top features
  • Real-time grammar & clarity fixes
  • Generative rewrite & drafting
  • Tone detector
  • Team style guides
  • 9-mode paraphraser
  • Summarizer
  • Grammar checker
  • Citation generator
Biggest strength Works in practically every app and browser Paraphraser has 9 distinct modes
Biggest weakness Premium is pricey for what casual users need Paraphrased text can trip AI detectors at schools

When to choose Grammarly

Grammarly layers generative AI on top of the web's most-installed grammar checker: rewrites, tone adjustment, and full drafting now sit alongside its classic correctness engine, across every app you use.

Grammarly remains the safest default: it catches what others miss and lives everywhere you type. Buy it for correctness, not for generation — its AI drafting is merely fine.
Read our full Grammarly review →

When to choose QuillBot

QuillBot bundles a market-leading paraphraser with grammar checking, summarizing, citation generation and a plagiarism checker — a student-friendly writing toolkit at a low price.

QuillBot is the best value writing toolkit for students and researchers — the paraphraser alone justifies the price. Professionals who need tone governance should pay up for Grammarly Business.
Read our full QuillBot review →

Frequently Asked Questions

Which is better, Grammarly or QuillBot?
Grammarly rates higher overall (4.5/5 vs 4.1/5) and is best for professionals who want error-free writing in every app. But QuillBot wins if you need students rewriting and summarizing source material — the right choice depends on your primary use case.
Is Grammarly cheaper than QuillBot?
QuillBot is cheaper, starting at $8.33/month vs $12/month for Grammarly. Factor in free tiers and what each plan actually includes.
Can I use both Grammarly and QuillBot together?
Yes — many users pair them: Grammarly for professionals who want error-free writing in every app, and QuillBot for students rewriting and summarizing source material. If budget forces a single choice, match the tool to your most frequent task.