AI writing and AI-search visibility (GEO) platform for SEO content, articles and marketing copy.
Grammarly vs QuillBot
Features, pricing, strengths and trade-offs — and which one fits your situation.
The verdict
Editor’s verdict
Grammarly is an always-on writing assistant that corrects and polishes text as you type across your apps, while QuillBot is a toolkit centered on paraphrasing, with summarizing, citations and translation alongside. Choose Grammarly if you write emails, reports and messages all day and want grammar, clarity and tone suggestions in Word, Google Docs, Gmail, Slack and on your phone, or if your team needs shared style guides and brand tones. Choose QuillBot if you regularly rewrite or condense existing text, need a citation generator, or want paraphrasing in 20+ languages; its paid plan bundles many tools at a lower cost, which suits students. Both offer AI detection and plagiarism checks on paid plans, and QuillBot's plagiarism checks are capped by monthly word count. Neither is the right tool for producing long, brand-consistent marketing content at scale; a marketing-focused AI platform fits that better.
Both Grammarly and QuillBot offer a free plan, so you can try each before paying.
Which should you choose?
Choose Grammarly if…
- You need catching errors and polishing tone in everyday writing across the apps you already use
- You're one of: professionals writing emails and documents, students, non-native english writers
- Works almost everywhere you type, including a mobile keyboard
Choose QuillBot if…
- You need paraphrasing, summarizing and checking academic or everyday writing on a budget
- You're one of: students, academic researchers, non-native english writers
- Many writing tools bundled under one subscription
At a glance
| Grammarly | QuillBot | |
|---|---|---|
| Best for | Catching errors and polishing tone in everyday writing across the apps you already use | Paraphrasing, summarizing and checking academic or everyday writing on a budget |
| Free plan | Yes | Yes |
| Starting price | From $12/mo | From $19.95/mo |
| Learning curve | Low | Low |
| Platforms | Web, Windows, macOS, iOS, Android, Chrome extension | Web, Windows, macOS, iOS, Android, Chrome extension |
| Ideal for | Professionals writing emails and documents, Students, Non-native English writers, Business and support teams | Students, Academic researchers, Non-native English writers, Bloggers rewriting drafts |
Feature comparison
| Grammarly | QuillBot | |
|---|---|---|
| Grammar & style checking | Yes | Yes |
| Paraphrasing / rewriting | Paid plans only | Yes |
| Long-form drafting | Limited | No |
| Brand voice / style guide | Paid plans only | No |
| Plagiarism checker | Paid plans only | Paid plans only |
| AI content detection | Paid plans only | Yes |
| Works in browser / other apps | Yes | Yes |
| Languages | English + 5 (translation 19) | 23 (paraphraser) |
| Team workspace | Yes | Yes |
IncludedLimited / higher plansNot available— Not confirmed
Security & enterprise
| Grammarly | QuillBot | |
|---|---|---|
| Business / enterprise plan | Yes | Yes |
| SSO (SAML / OIDC) | Enterprise plan | — |
| SCIM user provisioning | — | — |
| SOC 2 | Type II | — |
| ISO 27001 | Yes | — |
| HIPAA (BAA available) | Enterprise (BAA) | — |
| GDPR DPA | Yes | — |
| Data residency options | — | — |
| No training on your data | — | Team plan |
| Audit logs | — | — |
| Admin controls | Yes | Yes |
| Deployment | Cloud | Cloud |
From each vendor's security documentation. "—" = not confirmed. What to ask vendors · Compare all tools
What each tool does
Grammarly
Grammarly is an AI writing assistant that checks grammar, spelling, clarity and tone as you type in browsers, desktop apps, Microsoft Office, Google Docs and mobile keyboards. It also generates and rewrites text, and paid plans add plagiarism and AI-content detection, style guides and brand tones. Its parent company rebranded as Superhuman in 2025, but Grammarly continues as the writing assistant product.
Key features- Real-time grammar, spelling, clarity and tone suggestions
- Full-sentence rewrites and generative AI prompts
- Plagiarism and AI-content detection (paid)
- Style guides and brand tones for teams
- Grammar checks in five languages beyond English, translation into 19
- Works in browsers, desktop apps, Office, Google Docs and mobile
QuillBot
QuillBot is a writing toolkit built around its paraphraser, which rewrites text in modes such as Standard, Fluency, Formal, Academic, Simple, Creative, Expand and Shorten. It also includes a grammar checker, summarizer, AI detector, AI humanizer, plagiarism checker, citation generator, translator and AI chat. Students, researchers and non-native English writers make up much of its user base.
Key features- Paraphraser with multiple rewriting modes and custom modes
- Grammar checker and summarizer
- AI detector and AI humanizer
- Plagiarism checker (Premium)
- Citation generator and translator
- Extensions for Chrome, Edge, Safari and Word
Pricing
Grammarly
Free plan. Pro ~$12/mo billed annually or ~$30 monthly. Enterprise custom.
QuillBot
Free plan (limited paraphrasing). Premium $19.95/mo monthly or $99.95/yr (~$8.33/mo).
Prices last checked September 2026. Plans change often — confirm on each vendor's site.
Pros and cons
Grammarly
Strengths- Works almost everywhere you type, including a mobile keyboard
- Clear, easy-to-accept suggestions with little setup
- Team features include style guides, snippets and analytics
- Has a useful free plan
- Rewrites, tone adjustment, plagiarism and AI detection require a paid plan
- Generative AI prompts are capped per month except on Enterprise
- Less depth for fiction and long manuscripts than specialist editors
- Full-sentence grammar support outside English covers only five languages
Not ideal for: Novelists wanting in-depth manuscript analysis, or marketers who need long-form content generated at scale, should look at specialist tools.
QuillBot
Strengths- Many writing tools bundled under one subscription
- Paraphrasing supports 20+ languages
- Available on web, desktop, mobile and browser extensions
- Has a free plan with core tools
- Free plan limits paraphrasing length and modes
- Plagiarism checks are capped by monthly word count even on Premium
- Not designed for generating long-form marketing content
- No brand voice or style guide controls
Not ideal for: Marketing teams that need brand-consistent campaigns or long-form content generation will be better served by a marketing AI platform.
Integrations
Grammarly
QuillBot
FAQ
What is the main difference between Grammarly and QuillBot?
Grammarly is built for catching errors and polishing tone in everyday writing across the apps you already use; QuillBot is built for paraphrasing, summarizing and checking academic or everyday writing on a budget.
Is Grammarly or QuillBot cheaper?
Grammarly starts from $12/mo and QuillBot starts from $19.95/mo (as of September 2026). On entry price, Grammarly is cheaper — but compare what each plan includes, since limits differ. Always confirm current pricing on each vendor's site.
Do Grammarly and QuillBot have free plans?
Both Grammarly and QuillBot offer a free plan, so you can try each before paying.
Which is easier to use, Grammarly or QuillBot?
Both have a low learning curve.
What are good alternatives to Grammarly and QuillBot?
Other writing tools worth comparing include Writesonic, Koala AI and Rytr.
