Grammarly vs QuillBot
Side-by-side comparison of features, pricing, ratings, and alternatives.
Grammarly is an AI writing assistant that checks grammar, spelling, punctuation, and style in real time across browsers, desktop apps, and mobile keyboards. It integrates directly into Gmail, Google Docs, Microsoft Word, Slack, and thousands of other websites via a browser extension. Beyond basic correctness, Grammarly analyzes tone and clarity, suggesting rewrites to make writing more concise, confident, or friendly depending on the context and audience selected by the user. GrammarlyGO adds generative AI features for drafting emails, replying to messages, and rewriting passages on demand, while Grammarly Business adds brand style guides and analytics for teams that need consistent written communication across an organization.
QuillBot is an AI-powered writing suite built around its paraphrasing tool, offering multiple rewriting modes alongside grammar checking, a plagiarism checker, an AI content detector, and a summarizer. The platform says it is used by more than 35 million writers across 180+ countries, including students, academics, and business professionals who need to rework and polish written text quickly. Beyond paraphrasing, QuillBot's suite has grown to include a citation generator, a translator supporting 40+ languages, PDF and document tools, and an AI image generator, with access through a web dashboard, browser extensions for Chrome, Edge, and Safari, and a Microsoft Word add-in. A free plan covers basic paraphrasing and grammar fixes, while Premium unlocks unlimited use, all nine paraphrasing modes, and full AI detection.
Free for basic corrections; Premium starts at $12/month, Business at $15/user/month.
- Works across almost every app via browser extension
- Good tone and clarity suggestions beyond basic grammar
- GrammarlyGO speeds up drafting
- Free tier is genuinely useful
- Wide range of paraphrasing modes beyond simple synonym swapping
- Generous free tier for basic paraphrasing and grammar checks
- Deep integration into Word, Docs, and browsers via extensions
- Bundles grammar, plagiarism, AI detection, and citations in one subscription
- Premium features behind a subscription
- Occasional over-aggressive suggestions
- Privacy concerns for some sensitive writing contexts
- Free plan caps paraphrasing at 125 words per submission
- AI detector accuracy is inherently imperfect like all AI-text detectors
- Monthly billing is notably more expensive than the annual plan
What reviewers say
Grammarly Reviews
3.0 (2)Good, not great
Grammarly is solid overall, though it's not perfect. On the plus side, good tone and clarity suggestions beyond basic grammar. That said, premium features behind a subscription, which held us back from rating it higher.
Good, not great
Mixed feelings about Grammarly after using it for a while. On the plus side, free tier is genuinely useful. That said, privacy concerns for some sensitive writing contexts, which held us back from rating it higher.
QuillBot Reviews
No reviews yet.
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The Verdict
AI-generated from listing dataGrammarly offers broader app coverage and team‑focused features at a slightly better free value, while QuillBot excels in specialized paraphrasing, citation and AI‑detection tools.
Key differences
- •QuillBot provides nine paraphrasing modes, citation generation, translation and AI‑text detection; Grammarly focuses on grammar, tone, and brand style guides.
- •Grammarly’s browser extension works in almost any web app and includes integrations like Gmail and Slack; QuillBot’s integrations are limited to Word, Docs and major browsers.
- •Free tier limits: QuillBot caps paraphrasing at 125 words per submission, whereas Grammarly’s free tier offers unlimited basic grammar checks.
- •Team collaboration: Grammarly offers brand style guides and business plans; QuillBot has no team‑oriented features mentioned.
Pricing & value
Grammarly’s free tier provides unlimited basic corrections; QuillBot limits free paraphrasing to 125 words.
Ease of use / learning curve
Grammarly works via a universal browser extension across most apps, reducing setup effort.
Features & depth
QuillBot includes multiple paraphrasing modes, citation generation, translation, and AI‑text detection.
Integrations & ecosystem
Grammarly integrates with Gmail, Slack, Google Docs, Word and many web apps; QuillBot limited to Word, Docs, Chrome/Edge/Safari.
Collaboration
Grammarly offers brand style guides and business plans for team consistency; QuillBot lacks collaboration features.
Support
Grammarly lists Help Center and email support; QuillBot provides no support details.
Choose Grammarly if…
Teams or individuals prioritizing tone, style guides, broad app coverage, and stronger free‑tier value.
Choose QuillBot if…
Writers needing advanced paraphrasing, citation creation, translation, or AI‑text detection.
Common questions
Which tool offers a more useful free version?
Grammarly’s free tier provides unlimited basic grammar checks; QuillBot’s free tier limits paraphrasing to 125 words per submission.
Do either of these tools support team style guidelines?
Grammarly includes brand style guides for business users; QuillBot does not mention any team‑oriented features.
Can I generate citations or translate text with these tools?
QuillBot can generate APA/MLA/Chicago citations and translate into 40+ languages; Grammarly does not offer citation or translation features.