Comparison · Updated April 2026
Grammarly vs QuillBot
An in-depth comparison of Grammarly and QuillBot across pricing, features, strengths, and ideal use cases — so you can pick the right tool for your workflow.
Quick verdict
Choose Grammarly if you need anyone who writes professionally. Choose QuillBot if you prioritize students, academic writers, esl learners, content repurposing. Grammarly scores higher in user reviews (4.6 vs 4.4). Both offer free tiers — try each before committing.
Grammarly
AI writing assistant for grammar, style, and tone
Free · Premium $12/mo · Business $15/member/mo
Full review →QuillBot
AI paraphrasing and grammar tool for better writing
Free (limited) · Premium $9.95/mo
Full review →What is Grammarly?
Grammarly is the most widely deployed AI writing assistant, used by over 30 million people daily across browsers, desktop apps, and mobile keyboards. It operates everywhere you write, including email clients, Google Docs, Slack, social media, and CMS platforms, checking grammar, spelling, punctuation, clarity, tone, and style in real time. The free tier handles basic grammar and spelling. Premium ($12/mo) adds advanced suggestions for clarity, engagement, and delivery, plus a plagiarism detector that checks against 16 billion web pages. GrammarlyGO, the generative AI feature, enables full text generation, rewriting, brainstorming, and reply suggestions with controls for tone, formality, and length. For teams, Grammarly Business ($15/member/mo) adds a style guide, brand tones, analytics dashboard, and admin controls. Its strength is ubiquity: it works in the tools you already use without requiring context switching. It is the safest recommendation for anyone who writes professionally in English and wants polished, error-free output. The tool is best suited for anyone who writes professionally. It offers a free tier alongside paid plans (Free · Premium $12/mo · Business $15/member/mo), making it accessible for individuals and teams alike.
What is QuillBot?
QuillBot is an AI-powered paraphrasing and writing tool used by over 50 million students and professionals worldwide. Its core paraphraser rewrites text in seven different modes: Standard, Fluency, Formal, Simple, Creative, Expand, and Shorten, letting you adjust the output to match any context. Beyond paraphrasing, QuillBot includes a grammar checker that catches errors in real time, a summarizer that condenses articles to key points, a citation generator supporting APA, MLA, Chicago, and other formats, a plagiarism checker comparing text against billions of web sources, and a translator supporting 45+ languages. The platform integrates directly into Google Docs, Microsoft Word, and Chrome via extensions, so you can write and polish text without switching tools. The free tier includes limited paraphrasing and grammar checking. Premium ($4.17/mo billed annually) unlocks all seven paraphrasing modes, unlimited grammar suggestions, plagiarism detection, and priority processing. The tool is best suited for students, academic writers, esl learners, content repurposing. It offers a free tier alongside paid plans (Free (limited) · Premium $9.95/mo), making it accessible for individuals and teams alike.
Key differences at a glance
Pricing: Grammarly is priced at Free · Premium $12/mo · Business $15/member/mo, while QuillBot costs Free (limited) · Premium $9.95/mo.
User ratings: Grammarly leads with a 4.6/5 rating from 4,500 reviews, compared to QuillBot's 4.4/5 from 3,200 reviews.
Best for: Grammarly is optimized for anyone who writes professionally, while QuillBot excels at students, academic writers, esl learners, content repurposing.
Category overlap: Both tools compete in the writing, productivity categories.
Feature-by-feature comparison
| Feature | Grammarly | QuillBot |
|---|---|---|
| Pricing model | Freemium | Freemium |
| Starting price | Free · Premium $12/mo · Business $15/member/mo | Free (limited) · Premium $9.95/mo |
| User rating | ||
| Best for | Anyone who writes professionally | Students, academic writers, ESL learners, content repurposing |
| Categories | writingproductivity | writingproductivity |
| Free tier available | ✓ Yes | ✓ Yes |
| Mobile app | ✓ Yes | — No |
| Team / collaboration plan | ✓ Yes | — No |
| Custom bots / agents | ✓ Yes | ✓ Yes |
| Multi-language support | — No | ✓ Yes |
| Grammar & spelling | ✓ Yes | — No |
| Tone detection | ✓ Yes | — No |
| Style suggestions | ✓ Yes | — No |
| Generative AI | ✓ Yes | — No |
| Plagiarism detection | ✓ Yes | — No |
| Paraphrasing (7 modes) | — No | ✓ Yes |
| Grammar checker | — No | ✓ Yes |
| Summarizer | — No | ✓ Yes |
| Citation generator | — No | ✓ Yes |
| Plagiarism checker | — No | ✓ Yes |
| Word add-in | — No | ✓ Yes |
Pros and cons
Grammarly
Strengths
- Works everywhere
- Best grammar correction
- Tone detection
- Massive trust
Limitations
- Premium required for advanced
- Gen AI less capable
- Can be prescriptive
QuillBot
Strengths
- Best paraphrasing tool available
- Very affordable premium
- Great for academic writing
- Works everywhere
Limitations
- Free tier very limited
- Can alter meaning sometimes
- Less creative than full AI writers
Pricing comparison
Grammarly uses a freemium pricing model: Free · Premium $12/mo · Business $15/member/mo. The free tier is a good way to evaluate the tool before upgrading.
QuillBot uses a freemium pricing model: Free (limited) · Premium $9.95/mo. The free tier is a good way to evaluate the tool before upgrading. Users frequently mention its competitive pricing as a key advantage.
For cost-sensitive teams, compare actual API or per-seat costs using our AI Cost Calculator.
Which tool should you choose?
Choose Grammarly if you...
- → Need anyone who writes professionally
- → Value works everywhere
- → Value best grammar correction
- → Want to start free before committing
Choose QuillBot if you...
- → Need students
- → Value best paraphrasing tool available
- → Value very affordable premium
- → Want to start free before committing
Not sure which fits your workflow? Take our AI Tool Finder Quiz for a personalized recommendation based on your role, budget, and technical level.
Final verdict: Grammarly vs QuillBot
Both Grammarly and QuillBot are strong tools in the writing space, but they serve different needs. Grammarly stands out for works everywhere, making it ideal for anyone who writes professionally. QuillBot differentiates with best paraphrasing tool available, which benefits users focused on students.
With a 0.2-point rating advantage and 4,500 reviews, Grammarly has the edge in user satisfaction. The best approach is to try Grammarly's free tier and QuillBot's free tier to see which fits your specific workflow.
Frequently asked questions
Is Grammarly better than QuillBot?
It depends on your use case. Grammarly is best for anyone who writes professionally. QuillBot excels at students, academic writers, esl learners, content repurposing. Based on user ratings, Grammarly scores slightly higher at 4.6/5.
How much does Grammarly cost compared to QuillBot?
Grammarly pricing: Free · Premium $12/mo · Business $15/member/mo. QuillBot pricing: Free (limited) · Premium $9.95/mo. Both offer free tiers, so you can try each before committing.
Can I use Grammarly and QuillBot together?
Yes, many professionals use both tools for different tasks. You might use Grammarly for anyone who writes professionally and QuillBot for students. Using complementary tools often produces the best results.
What are the best alternatives to Grammarly and QuillBot?
Top alternatives include Claude, ChatGPT, Cursor. Each offers different strengths — browse our alternatives pages for Grammarly and QuillBot for detailed breakdowns.
Which tool is easier to learn — Grammarly or QuillBot?
Grammarly has a moderate learning curve. QuillBot has a moderate learning curve. Both tools offer documentation and tutorials to help new users get started quickly.
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