QuillBot vs Grammarly (2026): Which AI Writing Assistant Is Right for You?
Quick Answer: Choose Grammarly if you need advanced grammar, tone, and style checking with deep integrations — ideal for professionals and teams. Choose QuillBot if you need powerful paraphrasing, summarizing, translation, and citation tools at a lower price — perfect for students, academics, and multilingual writers. Many users combine both: Grammarly for editing, QuillBot for paraphrasing.
AI writing assistants have revolutionized the way we write and edit. Tools like Grammarly and QuillBot help students, professionals, and content creators improve grammar, clarity, and tone while streamlining tasks like paraphrasing and citation. This guide gives you a clear, up-to-date comparison so you can quickly decide which tool fits your needs.
Quick Comparison: Grammarly vs QuillBot
| Feature | Grammarly | QuillBot |
|---|---|---|
| Best For | Grammar, style, tone, team collaboration | Paraphrasing, summarizing, citation, translation |
| Grammar Checking | Highly accurate with smart suggestions | Decent, but sometimes less natural |
| Paraphrasing | Basic rephrasing | Powerful with multiple modes and freeze word options |
| Plagiarism Checker | Unlimited (premium) | Limited to 20 pages/month |
| Citation Tools | Not available | AI citation generator (beta) |
| Translation | Not supported | Supports over 30 languages |
| Integrations | 500,000+ apps, Docs, Word, browser, mobile | Chrome, Word, Docs, macOS (fewer) |
| Mobile App | iOS, Android | Not available |
| Pricing (Annual) | $12/month | $4.17–$8.33/month |
| Free Version | Yes, limited | Yes, with more features |
Grammarly vs QuillBot: Overview
📝 Grammarly
Founded: 2009
Core Purpose: Real-time grammar, tone, and style suggestions across devices.
Best for: Academic writing, business emails, blogging, team collaboration.
🔄 QuillBot
Founded: 2017
Core Purpose: AI-powered paraphrasing, summarizing, translation, and citations.
Best for: Rewriting academic content, ESL learners, budget-conscious users.
Accuracy & Performance: Grammar, Style, Clarity
Grammarly is known for precision in catching grammar, punctuation, and style issues. It offers context-aware suggestions with clear explanations, making it highly reliable for academic and professional writing. In side-by-side tests, Grammarly consistently detected more errors and provided better suggestions — flagging 30 issues vs QuillBot’s 13.
QuillBot also checks grammar and improves readability, but its corrections can be less accurate and sometimes sound unnatural. Its strength lies in paraphrasing rather than detailed grammar analysis.
Grammarly offers more accurate and in-depth grammar and style suggestions. Choose Grammarly for high-stakes professional or academic writing.
Paraphrasing Tools: QuillBot vs Grammarly
QuillBot is the undisputed leader in paraphrasing. It offers multiple modes: Standard, Fluency, Creative, Formal, Shorten/Expand, and Custom (freeze words). Perfect for rewriting essays, avoiding plagiarism, and generating alternative sentence structures in multiple languages.
Grammarly offers AI-driven rewrite suggestions focused on making sentences clearer and more fluid, but it’s not designed for deep paraphrasing.
Use QuillBot for advanced paraphrasing flexibility. Use Grammarly for refining clarity, flow, and tone in polished writing.
Plagiarism Checker Comparison
| Feature | Grammarly | QuillBot |
|---|---|---|
| Scope | Billions of web pages + ProQuest academic database | Web and academic sources |
| Limits | Unlimited (Premium) | 20 pages/month (Premium) |
| Best For | Students, researchers, professionals needing frequent checks | Occasional student assignments |
Integrations, Ease of Use & AI Capabilities
🔌 Grammarly Integrations
Browser extensions (Chrome, Safari, Firefox, Edge), Google Docs, Microsoft Word, Outlook, Slack, iOS/Android apps, desktop app.
🔌 QuillBot Integrations
Chrome extension, Microsoft Word add-in, API for developers. No mobile app.
🤖 GrammarlyGO
AI-powered content generation, rewriting, expanding, tone adjustment, and summarization based on user intent.
🤖 QuillBot AI
Multi-mode paraphrasing, summarizer, Co-Writer workspace, AI citation generator (beta).
Pricing and Plans (2026)
| Plan | Grammarly | QuillBot |
|---|---|---|
| Free | Basic grammar & spelling, limited tone detection | Basic grammar, limited paraphrasing (Standard/Fluency modes) |
| Premium Monthly | $30/month | $9.95/month |
| Premium Annual | $12/month ($144/year) | $4.17/month ($49.95/year) |
| Business | $15/user/month (annual) | Not available |
Pros and Cons Summary
✅ Grammarly Pros
Excellent grammar & tone suggestions, real-time feedback, deep integrations, unlimited plagiarism checker, team tools.
❌ Grammarly Cons
Limited paraphrasing, English-only, higher pricing.
✅ QuillBot Pros
Powerful multi-mode paraphrasing, affordable, summarizer, citation generator, translation (30+ languages).
❌ QuillBot Cons
Limited integrations (no mobile app), less advanced grammar checking, capped plagiarism (20 pages/month).
Many advanced users combine both tools: write with Grammarly for grammar and style, then use QuillBot for paraphrasing or summarizing. This gives you the best of both worlds.
Final Verdict: Who Should Choose Which?
• Need advanced grammar, style, and tone correction
• Want seamless integration with Word, Google Docs, Outlook, or Slack
• Work in a professional or business setting where polished writing is essential
• Focus on paraphrasing, summarizing, and citations
• Are a student, ESL learner, or academic writer
• Want high-value tools at a lower price ($4.17/month)
Try Both Tools Free
Test Grammarly and QuillBot with their free versions to see which fits your workflow best. Upgrade only when you need advanced features.
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Belekar Sir is the founder and lead instructor at Belekar Sir’s Academy, a trusted name in English language education. With over a decade of teaching experience, he has helped thousands of students—from beginners to advanced learners—develop fluency, confidence, and real-world communication skills. Known for his practical teaching style and deep understanding of learner needs, Belekar Sir is passionate about making English accessible and empowering for everyone. When he’s not teaching, he’s creating resources and guides to support learners on their journey to mastering spoken English.