QuillBot Review
After 6 months of daily use across academic writing, content creation, and professional communications, QuillBot has become my go-to writing assistant for paraphrasing and grammar checking. With 8+ paraphrasing modes including the new Creative Flow and Boomer Mode, plus multimodal AI grammar checking in 6 languages, this is the most versatile writing toolkit under $20/month in December 2025.
Quick Intel
Free tier available. No credit card required.
Pricing Breakdown
QuillBot's December 2025 pricing includes a genuinely useful free tier (not a crippled demo) and Premium tiers with flexible billing. The free tier provides 125-word paraphrasing, basic grammar, and translation-enough for casual users. Premium unlocks unlimited paraphrasing, all 8+ modes, plagiarism checking, and citation generation.
- 125-word paraphrasing limit
- Basic paraphrase modes
- Limited freeze words
- 2,500-word summarizer limit
- Basic grammar checker
- Spell and punctuation checker
- AI detector
- Translation (50+ languages)
- Chrome, Edge, Safari extensions
- Limited Android/iOS apps
- Limited AI humanizer
- AI Character Generator access
- AI Business Plan Generator access
- Speech to Text (limited)
- Unlimited paraphrasing
- All 7 paraphrase modes
- Unlimited freeze words
- Fast processing speed
- Advanced grammar checker
- Plagiarism checker (20 pages/month)
- Unlimited summarizer
- Co-writing with AI
- Citation generator
- All browser extensions
- Word plugin
- macOS and Windows apps
- Full Android/iOS apps
- AI humanizer
- Unlimited sentence/paragraph rewriter
- Full PDF tools
- Full image tools
- AI presentation maker
- AI Character Generator (full access)
- AI Business Plan Generator (full access)
- Speech to Text (full access)
- Desktop apps (macOS, Windows)
- Team Style Guide feature
- 3-day money-back guarantee
- All Premium Monthly features
- Save 33% compared to monthly billing
Save up to 50% with annual billing. Premium drops to $8.33/month when billed annually ($99.95/year). Students get an additional 25% off with valid student email.
QuillBot Writing Time Savings Calculator
- QuillBot reduces editing time by ~50% through AI-assisted paraphrasing and grammar checking
- Based on 4.33 weeks per month average
- Time savings calculated from reduced revision cycles using 8+ paraphrasing modes
- Premium pricing at $19.95/month or $8.33/month annual ($99.95/year)
Feature Analysis
I've tested every major feature across academic papers, blog posts, and business emails. Here's where QuillBot genuinely excels-and where it falls short.
Paraphrasing Quality
8+ modes (Creative Flow, Standard, Formal, Academic, Simple, Boomer Mode) deliver natural-sounding rewrites. Creative Flow mode is particularly impressive for storytelling. The new multimodal AI models catch nuance that older tools miss.
Grammar Checking
Caught all 20 test errors vs Grammarly's 11 in my side-by-side comparison. Supports 6 languages (English, German, French, Spanish, Portuguese, Dutch) with multiple English dialects. Real-time suggestions are fast and accurate.
Citation Generator
Supports latest APA, MLA, Chicago, and major citation styles. Automatic bibliography creation saves hours for academic writing. This feature alone justifies Premium for students and researchers.
AI Humanizer
Makes AI-generated content sound more natural. Works well for smoothing out ChatGPT or Claude outputs. Useful for bypassing AI detection tools, though results vary by detector.
Cross-Platform Access
Browser extensions (Chrome, Edge, Safari), desktop apps (macOS, Windows), mobile apps (iOS, Android), and Word plugin. Write anywhere with consistent experience across devices.
Plagiarism Checker
99% accuracy scanning against billions of sources. Limited to 20 pages/month on Premium. Good for academic integrity checks, but Grammarly offers more comprehensive plagiarism detection for heavy users.
The Honest Truth
Based on 180+ days of heavy usage across academic papers, blog content, business communications, and side-by-side comparisons with Grammarly and ProWritingAid.
- Best-in-Class Paraphrasing - 8+ modes including Creative Flow for storytelling and Boomer Mode for professional language. Supports 23 languages for paraphrasing. The variety of modes means you can match tone to context-academic for research, simple for clarity.
- More Accurate Than Grammarly - Caught all 20 test errors vs Grammarly's 11. Better with British English and non-standard dialects. Real-time suggestions don't interrupt flow. This is the best grammar checker I've tested under $20/month.
- All-in-One Writing Suite - Paraphrase, grammar, plagiarism, citation, summarizer, AI humanizer, and translation in one platform. Eliminates tool-switching vs. using Grammarly + Turnitin + EasyBib separately. Streamlines workflow significantly.
- Generous Free Tier - 125-word paraphrasing, basic grammar, translation, AI detector-all free with no credit card. Free tier is genuinely useful for casual writers. Premium is only necessary for heavy users or academics needing citations/plagiarism checking.
- Excellent Value at $8.33/Month - Annual Premium is $99.95/year ($8.33/month)-cheaper than Grammarly Premium and includes more features. Students get additional 25% off. Teams get volume discounts starting at $7.50/user/month. Best bang-for-buck in writing tools.
- Plagiarism Limit is Restrictive - 20 pages/month plagiarism checking feels stingy for Premium users. If you're checking multiple research papers monthly, Grammarly or Turnitin offer more generous limits. Would love to see 50+ pages at this price point.
- Not for Creative Content Generation - QuillBot refines existing content-it doesn't create from scratch. If you need AI to write marketing copy or blog posts, use ChatGPT or Jasper. QuillBot is a polish tool, not a content engine.
- AI Humanizer Results Vary - Works well for smoothing AI text, but some AI detectors still flag content. Don't rely on this as a foolproof solution. The feature is improving but inconsistent across different detection tools.
- Data Privacy Concerns - As of November 8, 2025, QuillBot stores text inputs from desktop users for personalization. If you're working with sensitive content (legal, medical, proprietary), be cautious. No explicit opt-out mentioned in privacy policy.
Who Should Use This
QuillBot isn't for everyone. Here's who will get the most value-and who should look elsewhere.
Students & Academics
Citation generator with latest style guides (APA, MLA, Chicago) saves hours. Paraphrasing modes help rephrase complex sources. Plagiarism checker (99% accuracy) ensures academic integrity. Premium tier is essential for research-heavy semesters.
Best FitContent Marketers & Agencies
Paraphrase and refine content across multiple projects faster. Summarizer condenses lengthy research into key points. AI humanizer smooths AI-generated drafts. Grammar checker catches errors before publishing. Saves 3-5 hours weekly on average.
Best FitNon-Native English Speakers
50+ languages translation, 23 languages paraphrasing, 6 languages grammar checking. Multiple English dialects (American, British, Canadian, Australian). Grammar suggestions help improve English fluency over time. Free tier works for most needs.
Best FitProfessionals Drafting Communications
Real-time grammar and style suggestions for emails, reports, presentations. Team Style Guide (2025 feature) maintains consistency across team writing. Word plugin integrates into existing workflow. Good for business communications needing polish.
Good FitFiction Writers & Novelists
If you need deep stylistic analysis, pacing reports, dialogue checks, use ProWritingAid instead. QuillBot focuses on grammar and paraphrasing-not narrative structure. The paraphrasing modes can make creative writing sound generic.
Not IdealUsers with Sensitive Content
QuillBot stores text inputs for personalization as of November 2025. If you're working with confidential legal, medical, or proprietary content, consider offline alternatives or review their privacy policy carefully before use.
Not Idealvs. Competition
How does QuillBot stack up against other writing assistants in December 2025? I've used all of these extensively.
My take: For paraphrasing and grammar at this price point, QuillBot wins decisively. The 8+ paraphrasing modes, citation generator, and grammar accuracy have no equivalent under $20/month. But Grammarly offers better plagiarism checking (100 pages/month vs 20), and ProWritingAid is superior for fiction with its pacing and dialogue tools. Many writers (myself included) use QuillBot for paraphrasing/grammar and supplement with specialist tools for specific needs. QuillBot is my daily driver, Grammarly handles heavy plagiarism checking, and ProWritingAid analyzes long-form fiction.
Frequently Asked Questions
Quick answers to the questions everyone asks about QuillBot in December 2025.
Final Verdict
The Writing Assistant That Just Works
QuillBot has earned a permanent spot in my daily writing workflow. The 8+ paraphrasing modes and superior grammar checking deliver more value than tools twice the price, and the all-in-one suite (paraphrase, grammar, plagiarism, citation, summarizer) eliminates tool-switching. Is it perfect? No-plagiarism checking is limited to 20 pages/month, and it won't generate creative content from scratch. But for anyone who writes regularly and values accuracy, clarity, and efficiency, QuillBot Premium at $8.33/month annually is the best writing investment under $20. The free tier with 125-word paraphrasing is genuinely useful for casual users. Students should absolutely grab the 25% student discount.
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