Grammarly vs QuillBot
Plans, free access, limits and intended use side by side, taken from each vendor’s own pages. No score and no winner: the facts show where the two differ.
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Real-time grammar, tone and AI writing help inside the apps where you already type.
AI paraphraser with grammar, summarizer, plagiarism and AI-detection tools
- Free access
- Grammarly: Free access
- QuillBot: Free access
- Paid from
- Grammarly: USD 12 per member per month
- QuillBot: USD 7.50 a seat a month; $89.95 a seat billed every 12 months
- Plans listed
- Grammarly: 3
- QuillBot: 3
- Public API
- Grammarly: Not confirmed
- QuillBot: Not confirmed
Where Grammarly and QuillBot differ
On the listed facts these two look alike. The plans, limits and screenshots below show where the details part ways.
Head to head
Each value from the tool’s profile and the vendor’s own pages
| Grammarly | Fact | QuillBot |
|---|---|---|
| Access and price | ||
| Free access availableFree · USD 0 | Free accessSame | Free access availableFree · USD 0 |
| USD 12 per member per monthPro · billed yearly · USD 30 billed monthly | Lowest listed paid plan | USD 7.50 a seat a month; $89.95 a seat billed every 12 monthsTeam (2-10 seats) |
| Free plan; Pro from USD 12; Enterprise custom | Pricing model | Free; Premium $8.33/month billed annually; Team from $7.50/seat |
| 3 | Plans listedSame | 3 |
| Not confirmed | Public API | Not confirmed |
| Not confirmed | Card to start | Not confirmed |
| Not confirmed | Open source | Not confirmed |
| What it is for | ||
| Correcting and polishing everyday writing | Built for | Students and writers who rewrite their own short passages and want to review each change |
| Writing & content | CategorySame | Writing & content |
| Platforms |
|
| Works with |
|
| How current | ||
| Profile sources checked | ||
| Prices confirmed · Sep 26, 2026 | Pricing checkSame | Prices confirmed · Oct 7, 2026 |
Official source check for both tools. No hands-on testing and no score: “Differs” marks a documented difference, not a better tool.
Plans and prices
Grammarly
Prices confirmed · Sep 26, 2026- FreeUSD 0EUR 0 shown
- ProUSD 12 per member per monthbilled yearly · USD 30 billed monthly
- EnterpriseContact provider
QuillBot
Prices confirmed · Oct 7, 2026- FreeUSD 0
- PremiumUSD 8.33 a month billed annually
- Team (2-10 seats)USD 7.50 a seat a month; $89.95 a seat billed every 12 months
Strengths and limits
Grammarly
Strengths
- Works where you already write: The same suggestions run in browser extensions, desktop apps, Office and Google Docs add-ins and mobile keyboards.
- Usable free tier: Free has no time limit and includes spelling, grammar, tone detection and a monthly prompt allowance.
- Flexible Pro billing: Pro can be paid monthly, quarterly or yearly per member, and a team account can grow to 149 seats.
Limits to plan around
- Refunds only where law requires: You can cancel at any time, but paid time is refunded only when local law requires it.
- Review agents are paid: Plagiarism Checker, AI Detector and Citation Finder need Pro, and Free gets a single AI Grader scan a day.
- Own rewrites can trip the detector: Text rewritten by Grammarly's agents is likely to be flagged by its AI Detector.
QuillBot
Strengths
- A usable free paraphraser: Free paraphrases up to 125 words at a time in two modes, enough to rework a sentence or short paragraph without paying.
- Changes are visible and adjustable: The synonym slider, word-level synonyms and change colors let you accept or reject edits instead of taking a whole rewritten passage.
- Team seats are cheaper per writer: The Team page lists $7.50 a seat a month for 2-10 seats billed every 12 months, below the individual $8.33 annual rate.
Limits to plan around
- Only the annual price is on the pricing page: The pricing page read showed $8.33 a month billed annually; the help center confirms monthly and quarterly plans but not their prices, and says price depends on region and currency.
- Limits differ across tools and platforms: Plagiarism checks have a monthly word cap and summaries a per-run cap even on Premium, and the pricing page says limits may vary across platforms.
- Detector results can be wrong: QuillBot's own help center says its AI detector can flag human-written text.
See both products
Start from your task, not from a winner.
Run both tools on the same real task, then compare the result, how much editing it needs and how fast it uses your plan’s allowance.
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Questions about comparing tools
How does the comparison work?
Add two tools to the comparison tray from any tool card, then open this page. The table pulls each tool's verified plan details, platforms, strengths and limits from its profile, so both columns carry the same kind of evidence, with a separate source-check date for each tool.
Do you declare a winner?
No. The table sets two tools against each other on documented facts, not on a score. Which one wins depends on your task, your budget and your usage volume — three things we cannot see from here.
Why are some cells empty or marked unverified?
Because we could not confirm that detail on the vendor's own pages. Rather than filling the gap with a figure from elsewhere, we mark it and say why on the tool's profile.
Can I compare more than two tools?
Not at once. Two columns keep the differences readable and force a real decision. Remove either selected tool to replace it, or clear both to start a new pair.
Every figure in the table above comes from the linked profile, where the source and the verification date are listed. Browse all tools or read the editorial policy.