Best for
Best for individuals and teams who want grammar, clarity and tone help across every app they write in.
- Freelancers
- Small and mid-sized
- Enterprise
AI Writing Comparison
Grammarly vs. QuillBot
At a glance
At a glance
Best for
Best for students, writers and researchers who need paraphrasing, summarizing and grammar help.
- Freelancers
- Small and mid-sized
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | Grammarly | QuillBot |
|---|---|---|
| Starting price | Free tier; Pro from $12 / user / month $12 per member per month billed annually, $30 billed monthly. Enterprise is custom. | lower value Free tier; Premium from $8.33 / month $8.33 per month billed annually ($99.95 per year); $19.95 billed monthly. Team plan from $3.75 per seat. |
| Free trial | Free tier with 100 AI prompts per month | Free tier with a 125-word paraphraser and unlimited grammar checker |
| Commercial use | Yes | Yes |
| Output | Grammar, clarity and tone suggestions, plus generative AI drafts | Paraphrased and summarized text, grammar fixes and translations |
| Content types | Emails, documents, business and academic writing | Paraphrasing, summaries and grammar fixes |
| Brand voice | Yes, brand tone and style guide (unlimited on Enterprise) | No brand voice controls |
| Content scoring | Yes, writing performance score and tone detection | No content performance scoring; includes grammar and plagiarism checks |
| Drafting tools | Yes, generative AI prompts, rewrites and tone adjustments | Yes, paraphraser, grammar checker, summarizer, AI writer and translator |
| Templates | No preset template library; generation runs from prompts and built-in AI agents | No template library |
| Team workflows | Yes, team analytics, snippets and shared style guide | Yes, Team plan with team dictionary and style guide |
| API | No public API; the Text Editor SDK for developers was discontinued in 2024 | No official public API |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Company size | more entries Freelancers, Small and mid-sized, Enterprise | Freelancers, Small and mid-sized |
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Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Key Differences
- Starting price Grammarly Free tier; Pro from $12 / user / month QuillBot Free tier; Premium from $8.33 / month
- Free trial Grammarly Free tier with 100 AI prompts per month QuillBot Free tier with a 125-word paraphraser and unlimited grammar checker
- Company size Grammarly Freelancers, Small and mid-sized, Enterprise QuillBot Freelancers, Small and mid-sized
- Output Grammarly Grammar, clarity and tone suggestions, plus generative AI drafts QuillBot Paraphrased and summarized text, grammar fixes and translations
- Content types Grammarly Emails, documents, business and academic writing QuillBot Paraphrasing, summaries and grammar fixes
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Grammarly
Strengths
- Free tier is genuinely useful for everyday writing
- Works across apps and browsers through extensions
- Brand tones and style guides keep a consistent voice
Limitations
- Generative AI is capped by monthly prompt limits
- Enterprise pricing is custom, not published
QuillBot
Strengths
- Strong paraphrasing and summarizing tools
- Free grammar checker with no word limit
- Cheap annual and team pricing
Limitations
- Free paraphraser is capped at 125 words
- Free plan includes only two paraphrasing modes
Plans
Pricing
Grammarly
- Free $0 100 AI prompts per month.
- Pro $12 Per member per month billed annually. $30 billed monthly.
- Enterprise Custom Contact sales.
QuillBot
- Free $0 125-word paraphraser, unlimited grammar checker.
- Premium $8.33 Per month billed annually ($99.95 per year). $19.95 billed monthly.
- Team $3.75 Per seat per month billed annually, 2 to 10 seats.
What users say
Review Scores · opens after launch
Grammarly
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
QuillBot
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Where this comes from
Where this comes from
Grammarly https://www.grammarly.com · no check date recorded yet
QuillBot https://quillbot.com · no check date recorded yet
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.