Paperpal vs QuillBot

Paperpal

• Researchers preparing manuscripts for journal submission
• Students writing theses and essays who need citation help
• Non-native English speakers polishing academic prose
• Writers who want checks inside Word, Google Docs or Overleaf

QuillBot

• Students and writers who need to reword or shorten existing text
• People who want paraphrasing, grammar and citation tools in one account
• Teams of 2 or more that want centralized billing

Paperpal

• The Free plan stops at 200 grammar edits a month and 5 uses a day of the paraphrase, translate and research tools.
• Plagiarism checks have a monthly word cap on every paid plan; going over it means buying a one-time add-on valid for a month.
• The one-time multi-year option exists for Prime only, and the full Journal Fit report needs Pro.
• No desktop or mobile app is listed: it runs on the web, in a Word add-in and in Chrome and Edge extensions.

QuillBot

• The free plan paraphrases at most 125 words at a time and offers only the Standard and Fluency modes.
• Free summaries are capped at 1,200 words; Premium raises the cap to 6,000.
• Plagiarism checking is a Premium feature and is limited to 25,000 words a month.
• The pricing page leads with annual billing at $8.33 a month; the iOS app lists monthly billing at $19.99.

Paperpal

Grammar and consistency checks

Suggests grammar, tone and consistency fixes tuned to academic writing. The Free plan allows 200 edits a month, Prime 20,000 and Pro has no cap.

Paraphrase, trim and translate

Rewrites sentences in an academic tone, cuts word count and translates text, with translation powered by DeepL in over 30 languages.

Research and citations

Answers questions with cited findings from more than 300 million research articles and formats citations in over 10,000 styles.

Chat with PDFs and a library

Upload papers and ask questions about them: 5 files a month on Free, 150 on Prime and 500 on Pro, with library storage from 300 MB to 10 GB.

Plagiarism and AI detection

Checks similarity against a stated 99 billion sources and flags AI-written text. Plagiarism checks are capped at 10,000 words a month on Prime and 30,000 on Pro.

Submission readiness checks

Runs more than 30 pre-submission checks on language, structure, figures, disclosures and metadata. The full Journal Fit report is limited to Pro.

QuillBot

Paraphraser

Rewords text in built-in modes: Standard and Fluency on the free plan, 9 modes plus unlimited custom modes on Premium. It paraphrases in 23 languages.

Grammar Checker

Fixes basic grammar errors on the free plan and adds advanced writing suggestions and tone insights on Premium. Grammar correction covers 6 languages.

AI Detector and Humanizer

The AI Detector flags AI-generated content, and the Humanizer rewrites text so it reads more naturally. Free use of both is limited; Premium gives full access.

Summarizer and Translator

Summarizes up to 1,200 words on the free plan and 6,000 on Premium, which adds custom summaries. The Translator covers more than 40 languages.

Plagiarism and citation tools

Premium scans up to 25,000 words a month for accidental plagiarism, and the Citation Generator formats references in APA, MLA and Chicago styles.

Extensions and apps

Chrome, Edge and Safari extensions, a Word add-in, macOS and Windows apps, and iOS and Android keyboards and apps. Premium runs on up to 10 devices at a time.

Paperpal

• Free$0

  200 grammar edits a month, 5 writing and research uses a day, chat with 5 files a month and 300 MB of library storage. No card required.

• Prime$12

  per month, billed annually ($144); $25 billed monthly

  20,000 grammar edits, 10,000 words of plagiarism checks, 25,000 words of AI detection and 500 writing and research uses a month, with 2 GB of storage.

• Pro$29

  per month, billed annually ($348); $59 billed monthly

  Unlimited grammar edits, AI detection and writing tools, 30,000 words of plagiarism checks a month, full Journal Fit reports and 10 GB of storage.

• Enterprise / InstitutionCustom

  Institution-wide pricing with access management and shared libraries, arranged through sales, with a free trial on request.

QuillBot

• Free$0

  Paraphrase up to 125 words in 2 modes, fix basic grammar errors, summarize up to 1,200 words, and use the Humanizer and AI Detector with limits.

• Premium$8.33

  per month, billed annually

  Full paraphrasing in 9 modes plus custom modes, advanced grammar suggestions, 6,000-word summaries, the full AI Detector and plagiarism checks on 25,000 words a month.

• Team Plan$7.50

  per seat / month, billed every 12 months ($89.95), for 2-10 seats

  All Premium features plus writer-management dashboards and centralized billing. $6.66 a seat for 11-50 seats and $5.83 for 51 or more.

Paperpal

• Annual discount

  About half off with annual billing

  Prime costs $144 billed annually against $25 a month ($300 over a year), and Pro $348 against $59 a month ($708), a saving of roughly 51 to 52%.

• Other savings

  Prime Multi-year Saver: one payment for 2 or 3 years

  Prime can be bought for 2 years at $229 or 3 years at $289 as a single payment with no auto-renewal. The option is not offered for Pro.

• Education

  Student discount through an institution email

  Paperpal's pricing FAQ offers a discount to students who sign up with an institution email address and recommend that their institution buy a license.

QuillBot

• Annual discount

  Annual billing marked as 58% off

  The pricing page labels annual billing 58% off the monthly rate, which brings Premium to $8.33 a month. In the iOS app the plans are $99.99 a year or $19.99 a month.

• Other savings

  Team seats cost 10% to 30% less

  Team plans are $7.50 a seat per month for 2-10 seats, $6.66 for 11-50 and $5.83 for 51 or more, billed every 12 months and labeled as 10%, 20% and 30% savings.