Side-by-side tool comparison
Grammarly vs QuillBot: Writing Assistant Comparison
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Pick Grammarly for thorough grammar correction, tone detection, and the widest platform support. Pick QuillBot if paraphrasing and rewording is your main need — it does that better and cheaper. Grammarly is the better writing cop; QuillBot is the better rewriting partner.
| Feature | Grammarly | Quillbot |
|---|---|---|
| Developer | Grammarly Inc. | QuillBot (Course Hero) |
| Type | AI writing assistant | AI paraphrasing & writing tool |
| Free Tier | Yes (basic grammar checks) | Yes (limited paraphrasing) |
| Pro Price | $12/mo (annual) | $10/mo (annual) |
| Key Strength | Best grammar/style correction | Best paraphrasing tool |
| Weakness | Aggressive upselling, pricey | Grammar checks less thorough |
| AI Writing | GrammarlyGO (generative AI) | Co-Writer, Summarizer |
| Plagiarism Checker | Yes (Premium) | Yes (Premium) |
| Tone Detection | Yes (real-time) | Modes (formal, fluency, etc.) |
| Browser Extension | Chrome, Firefox, Safari, Edge | Chrome, Edge |
| Platform | Web, desktop, iOS, Android | Web, Chrome, Word add-in |
| Crypto Payment | Card only | Card only |
Watch & Compare
Grammarly
Grammarly Tutorial: How to Improve Your Writing Instantly
Quillbot
How to use QuillBot AI in 2026
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Frequently Asked Questions
What is the difference between Grammarly and Quillbot?
Pick Grammarly for thorough grammar correction, tone detection, and the widest platform support. Pick QuillBot if paraphrasing and rewording is your main need — it does that better and cheaper. Grammarly is the better writing cop; QuillBot is the better rewriting partner.
Which is better, Grammarly or Quillbot?
It depends on your needs. Pick Grammarly for thorough grammar correction, tone detection, and the widest platform support. Pick QuillBot if paraphrasing and rewording is your main need — it does that better and cheaper. Grammarly is the better writing cop; QuillBot is the better rewriting partner. Check the detailed comparison table above to see how they differ across pricing, features, and use cases.
Can I use Grammarly and Quillbot together?
Yes, many users combine both tools. Grammarly and Quillbot have different strengths, so using them side by side can cover more of your workflow. There's no technical reason you can't use both.
Who should choose Grammarly over Quillbot?
Pick Grammarly if your priority is professional email and business communication polishing. Pick Quillbot if you need rewriting academic papers for clarity and style. Both are solid options — the best choice depends on your specific workflow.
Is Grammarly free?
Grammarly offers a free plan with limited features. Free basic grammar checking; Premium at $12/mo for advanced features; Business at $15/member/mo for teams
Is Quillbot free?
Quillbot offers a free plan with limited features. Free basic paraphrasing; Premium at $9.95/mo unlocks all features
What are the best alternatives to Grammarly and Quillbot?
Check our comparison page for related tools. We cover similar products in the same category so you can find the right fit. Each alternative is compared on pricing, features, and use cases.