Grammarly vs Quillbot
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | Grammarly | Quillbot |
|---|---|---|
| Pricing | Freemium (Pro from $12/mo billed annually) | Freemium (Premium from $4.17/mo billed annually) |
| Paraphrasing | Full-sentence rewrites | 6 modes (Standard, Fluency, Formal, etc.) |
| AI Detector | Included, ranked #1 in quality | Included |
| Key Integrations | Google Docs, MS Office, Chrome, Zendesk, Blackboard | Chrome, Word, macOS, Windows, iOS, Android |
| Unique Feature | Speech-to-text dictation, AI agents in Docs | Citation generator, ChatPDF, AI image generator |
| Best For | Professionals & teams | Students & content marketers |
If you're a student or content creator who needs paraphrasing, citation help, and a budget-friendly all-in-one, Quillbot wins. But if you write emails, reports, or support tickets daily and need tone polish, team style guides, and the best AI detection, Grammarly is the safer bet—especially with its new speech-to-text and AI agents.
Grammarly is AI writing assistance that proofreads, rewrites and adjusts tone inside the apps you already type in.
Visit WebsiteWhat real users say: Grammarly vs Quillbot
Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.
Grammarly
96 mentions across 6 sources · 54% positive — mixed (averaged across 6 sources)
Hacker News, YouTube, Product Hunt, App Store, Stack Overflow, Lemmy
What users praise
- • Catches grammar and spelling mistakes in real time across all apps.
- • One-click full-sentence rewrites save time and improve clarity.
- • Tone detection helps adjust writing for different audiences.
- • Works everywhere: browser, desktop, Office, Google Docs.
What frustrates them
- • Free tier no longer fixes basic punctuation errors.
- • Privacy scandal over using authors' identities without consent.
- • Mobile dictation keyboard is glitchy and annoying.
- • Aggressive upsells and paywalls block quick fixes.
Researched Aug 18, 2026
Quillbot
48 mentions across 5 sources · 40% positive — mixed (averaged across 5 sources)
Hacker News, YouTube, Product Hunt, App Store, Lemmy
What users praise
- • Excellent paraphrasing tool with multiple modes (fluency, formal, creative).
- • Grammar checker provides clear, actionable suggestions that improve writing.
- • All-in-one suite: paraphrase, grammar, summarizer, citation generator in one place.
- • Generous free tier for basic paraphrasing and grammar—usable without paying.
What frustrates them
- • AI Detector is unreliable: false negatives and false positives abound.
- • Recent updates broke core features and silently removed translation.
- • Free tier feels unusable without a paid subscription—aggressive paywall.
- • Refund policy is hostile; users have difficulty canceling and getting money back.
Researched Aug 18, 2026
Feature-by-feature
Quillbot leans on a wide suite: paraphrasing with six modes (Standard, Fluency, Formal, Creative, Expand, Shorten), a summarizer, translator for 30+ languages, citation generator (APA, MLA, Chicago), plus AI chat, image generator, presentation creator, and ChatPDF. That's a full writing-and-design toolkit. Grammarly, by contrast, sharpens real-time grammar, tone detection, and full-sentence rewrites across more integrations (Google Docs, Microsoft Office, Zendesk, Blackboard). Recent Grammarly news adds speech-to-text dictation—a game-changer for hands-free drafting—and Grammarly Docs with AI agents for collaborative brainstorming. Both offer AI Detector and AI Humanizer, but Grammarly's detector was just ranked #1 in quality. Quillbot's integration set is thinner (Chrome, Word, mobile, desktop) and lacks deep team features like brand tones. For writing quality, Grammarly's feedback is more context-aware; Quillbot shines in paraphrase variety and academic tools.
Pricing compared
Quillbot's freemium model is aggressive: unlimited grammar checking and three paraphrase modes free, with Premium around $4.17/month when billed annually—far cheaper than Grammarly's Pro at $12/month. Quillbot Premium adds plagiarism checks, all paraphrase modes, and the full toolkit. Grammarly's free plan includes 100 generative AI prompts; Pro gives 2,000 and unlocks tone adjustment, plagiarism detection, and style guides. For solo students on a budget, Quillbot's price is unbeatable. For professionals needing team features (brand tones, style guides) and enterprise security (DLP, BYOK), Grammarly's Enterprise tier justifies the cost. But if you rarely hit Quillbot's free limits, you might not need to pay at all.
Who should pick which
- Student writing essays with citationsPick: Quillbot
Quillbot's paraphraser, citation generator, and plagiarism checker cover academic needs at a low price.
- Marketing professional crafting on-brand emailsPick: Grammarly
Grammarly's brand tones and style guides keep messaging consistent; the AI detector ensures originality.
- Non-native English speaker improving fluencyPick: Quillbot
Quillbot's multiple paraphrase modes (Fluency, Formal) are tailored to rephrase for clarity, plus translation.
- Support team using ZendeskPick: Grammarly
Grammarly's Zendesk integration helps maintain consistent, confident responses with real-time suggestions.
- Content marketer repurposing articlesPick: Quillbot
Quillbot's summarizer and paraphraser speed up content repurposing, and the AI image generator adds visuals.
Frequently Asked Questions
Grammarly vs Quillbot: which should you choose?
If you're a student or content creator who needs paraphrasing, citation help, and a budget-friendly all-in-one, Quillbot wins. But if you write emails, reports, or support tickets daily and need tone polish, team style guides, and the best AI detection, Grammarly is the safer bet—especially with its new speech-to-text and AI agents.
Can I use Quillbot and Grammarly together?
Yes, many users pair them: Grammarly for thorough grammar checks as you type, Quillbot for targeted paraphrasing. Both work as browser extensions, though you may want to disable one to avoid overlap.
Which tool has a better AI detector?
Grammarly's AI Detector recently ranked #1 in quality, so it's the more reliable choice if detection is your priority. Quillbot also offers one, but without the independent validation.
Does Grammarly support multilingual writing?
Yes, Grammarly now supports Spanish, French, Portuguese, German, and Italian for AI writing help, plus translation in 19 languages. Quillbot also translates in 30+ languages.
Can I dictate text with either tool?
Grammarly just launched speech-to-text dictation, so you can dictate into any supported app. Quillbot doesn't list a dictation feature.
Which is better for academic citation help?
Quillbot has a dedicated citation generator in APA, MLA, and Chicago styles. Grammarly's citation feature is more basic, so Quillbot is the stronger pick for academic papers.
Are there any free limits on AI prompts?
Grammarly gives 100 free AI prompts per month, and 2,000 on Pro. Quillbot's AI chat is included in its free tier, but premium features like unlimited paraphrasing require a subscription.
Does either tool work offline?
Both require a cloud connection, so offline editing isn't supported. Quillbot does offer desktop apps, but you still need to be online.
Which is more affordable for long-term use?
Quillbot's premium is significantly cheaper (around $4.17/month annual) compared to Grammarly's $12/month. But Grammarly's free tier is generous for basic grammar, so you might not need to pay at all.
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Last reviewed: September 1, 2026