AI Tools · head to head
QuillBot vs Grammarly
The short version
- Each has a real cost: QuillBot free tier limited to 125-word paraphrases with only 2 modes; Grammarly occasional false positives and grammatically incorrect suggestions that can introduce errors
- They diverge on capability: QuillBot covers Paraphrasing, Grammarly covers Spelling correction.
Where they differ
Only the attributes on which QuillBot and Grammarly actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in QuillBot
- Paraphrasing
- Summarization
- Browser extension
- Microsoft Word
- Web support
- Browser-extension support
Only in Grammarly
- Spelling correction
- Punctuation
- Clarity suggestions
- Engagement feedback
- Delivery insights
- Plagiarism checker
- Chrome
- Safari
Both cover
- Grammar checking
- Citation generator
- Google Docs
What people use each for
The jobs each tool is most often brought in to do.
QuillBot
- ai tools managementnot Grammarly
- Workflow automationnot Grammarly
- Reportingnot Grammarly
Grammarly
- Email writingnot QuillBot
- Document editingnot QuillBot
- Academic writingnot QuillBot
- Business communicationnot QuillBot
- Content creationnot QuillBot
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
QuillBot
- Free tier limited to 125-word paraphrases with only 2 modes
- Grammar checking is less robust than Grammaly
- Writing analytics less advanced than top-tier competitors
Grammarly
- Occasional false positives and grammatically incorrect suggestions that can introduce errors
- Privacy concerns about sending text to Grammarly's servers for analysis
- AI capabilities sometimes produce hallucinations and fabricated citations that appear grammatically correct
Pricing, plan by plan
QuillBot
Free- FreeFree
- 125 words paraphrase
- 3 modes
- Premium$9.95/month
- Unlimited words
- All modes
- Plagiarism checker
Grammarly
Free- FreeFree
- Basic grammar and spelling checks
- Tone visibility
- 100 AI prompts per month
- Pro$12/month
- Sentence rewrites
- Tone adjustment
- Plagiarism and AI detection
Which should you pick?
Choose QuillBot if
- You need paraphrasing.
- You want to start without paying.
- You also want summarization.
Choose Grammarly if
- You need spelling correction.
- You want to start without paying.
- You work on Web, macOS, Windows, iOS, Android.
- You also want punctuation.
Questions people ask
- Is QuillBot or Grammarly better?
- Neither clearly leads. QuillBot starts at Free and Grammarly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, QuillBot or Grammarly?
- QuillBot starts at Free and Grammarly at Free.
- Does QuillBot or Grammarly run on more platforms?
- QuillBot runs on Web. Grammarly runs on Web, macOS, Windows, iOS, Android.
- Can I use QuillBot for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is QuillBot best used for?
- QuillBot is most often used for ai tools management, workflow automation, reporting. Of those, ai tools management and workflow automation are not what Grammarly is typically brought in for.
- What can QuillBot do that Grammarly cannot?
- QuillBot covers Paraphrasing, Summarization, Browser extension, Microsoft Word. Grammarly covers Spelling correction, Punctuation, Clarity suggestions, Engagement feedback. Both handle Grammar checking, Citation generator, Google Docs.
Answered from the vendors’ own pages
QuillBot: What is QuillBot pricing?
QuillBot uses a freemium model. Premium costs $19.95/month or $8.33/month ($100/year) when billed annually. The free tier provides basic paraphrasing with 125-word limit and 2 modes.
SourceGrammarly: Does Grammarly have a free version?
Yes, Grammarly offers a free tier with basic spelling, grammar, and punctuation checks, tone visibility, and 100 AI prompts per month. The Pro plan ($12/month annual) adds sentence rewriting, plagiarism detection, and 2,000 AI prompts.
SourceQuillBot: What are QuillBot's paraphrasing modes?
QuillBot offers 10 specialized paraphrasing modes including Standard, Fluency, Creative, and the newly added Boomer Mode, providing unmatched flexibility at this price point.
SourceGrammarly: What platforms does Grammarly work with?
Grammarly works across 1 million+ apps including Google Docs, Microsoft Word, Outlook, Slack, Gmail, and web browsers. It also integrates with productivity tools like Asana, Jira, Monday.com, Confluence, and HubSpot.
SourceQuillBot: What features does the free plan include?
QuillBot's free plan includes paraphrasing (125-word limit, 2 modes), grammar checking with limited daily checks, summarizing (1,200-word limit), and basic translation.
SourceGrammarly: Can I use Grammarly offline?
Grammarly requires an internet connection to function, though the browser extension works with some offline text areas. For offline use, the desktop app and browser extensions sync when reconnected.
SourceGrammarly: What is included in the Enterprise plan?
The Enterprise plan includes unlimited team members, dedicated support, custom roles and permissions, data loss prevention, bring-your-own-key encryption, and unlimited AI prompts. Pricing is custom and available by contacting sales.
Source