🚀 パートナーシップに関するお問い合わせ: fahim@fahimai.com | 17言語で月間25万人以上の読者から信頼されています🔥

🚀 パートナーシップに関するお問い合わせ: fahim@fahimai.com

Paperpal vs Quillbot: Grammar Checker Showdown in 2026

執筆者 | Last updated Jul 22, 2026

勝者
クイルボット
4.2
  • 125 Free Words Per 言い換え
  • 4.3M+ Users Worldwide
  • 4 English + 4 Other Languages
  • 無料引用 ジェネレータ
  • Summarizer, Translator, Humanizer
  • 永久無料プラン
  • プレミアムプランは月額4.17ドルから
準優勝
ペーパーパル
4.1
  • 2-3x More Suggestions
  • 7,000 Free Plagiarism Words
  • 10,000+ Citation Styles Free
  • 250M Research Articles
  • MS Word Add-in
  • 無料プランあり
  • Prime from $19/month

⚡ 簡単な評価:

  • 価格: QuillBot Premium starts at $4.17 per month. Paperpal Prime costs $19/month. Both offer a free version.
  • 最適な用途: QuillBot suits fast paraphrasing, summarizing and general writing. Paperpal suits academic writing and journal publication work.
  • 主な違い: Paperpal understands academic context and adds submission readiness checks. QuillBot covers broader writing tools like translation and PDF conversion.
  • 私たちのおすすめ: QuillBot for most users. It rates 4.2 versus 4.1 and does more for less money.
Paperpal vs QuillBot Comparison

The cheaper tool here is not the weaker one.

QuillBot costs a fraction of what Paperpal charges each month.

Yet it still covers paraphrasing, grammar checking, summarizing and translation.

Paperpal answers a narrower 質問 about academic writing excellence.

This Paperpal vs QuillBot breakdown shows which one fits your writing process.

概要

We reviewed documentation, pricing pages and user reviews for both AI writing tools.

私たちのライター陣は、それぞれの動物と実際に触れ合う時間も設けました。

それらのメモは、以下の「チームが気づいたこと」のセクションに記載されています。

We cover pricing, features, ease of use and who each tool suits.

Paperpalとは何ですか?

Paperpal is an AI writing アシスタント built for academic and technical writing.

It was trained on millions of published papers and edits from professional academic 編集者.

That training is why Paperpal understands academic context better than general tools.

It delivers real-time, subject-specific language suggestions as you write.

Most researchers pick it for writing research papers aimed at journal publication.

ペーパーパル

⭐ 4.1/5 | 💰 月額19ドルから

Built for academic research and scientific writing. It gives 2-3 times more suggestions than other AIツール. Free citation generation capabilities cover 10,000+ styles.

Paperpalの価格設定

Here is what Paperpal costs in 2026. The structure is simple.

プラン価格最適な用途
無料$0Trying the free essay チェッカー and basic grammar suggestions
プライム月額19ドルResearchers writing research papers for journal publication

価格は2026年7月に確定しました。

ペーパーパルの価格

無料トライアル: Yes. Paperpal offers a free account with basic features. No credit card is needed to start.

返金保証: Refunds are handled case by case through support. Check the terms before you buy.

📌 注記: The free tier still includes plagiarism scanning of up to 7,000 words. It also allows unlimited citation generation across 10,000+ styles.

⚠️ Pricing conflict: Our CSV records Prime at $19/month. Some sources list Prime at $25 per month with an annual plan at $139. Confirm the current rate on the Paperpal pricing page before purchase.

Key Benefits of Paperpal

Here is what makes Paperpal worth considering:

  • Denser feedback: Paperpal provides 2-3 times more suggestions than other AIツール. That means fewer missed punctuation errors and spelling errors.
  • Academic tone control: It holds academic tone across long drafts. Discipline conventions such as patient first language stay intact in medical papers.
  • Free citation help: You get free citation generation capabilities in 10,000+ styles. In 文章 citations and reference lists both work.
  • Research answers: Paperpal draws science-backed answers from a vast database of 250 million scholarly articles. You can save relevant articles for later.
  • Plagiarism scanning: The plagiarism checker scans up to 7,000 words for free. It runs in collaboration with Turnitin.
  • Word integration: A strong Microsoft Word add-in keeps your writing process inside the file you already use.

The video below walks through those benefits in order.

Here is how the workspace looks once you sign in.

ペーパーパル

私たちのチームが気づいたこと

私たちの 作家 signed up for Paperpal in June and drafted a short methods section with it. Here is what stood out from that hands-on time:

Paperpal Pros & Cons

✅ メリット
  • Preserves academic tone and discipline-specific academic language
  • Free citation generation in 10,000+ styles
  • Submission readiness checks flag technical compliance gaps before you submit
  • Strong Microsoft Word add-in for academic writing
❌ デメリット
  • Prime costs far more per month than QuillBot Premium
  • Narrow fit outside academic content and scientific contexts
  • No PDF converter or dedicated AI Humanizer

QuillBotとは何ですか?

QuillBot is a general-purpose paraphrasing tool and grammar checker.

More than 4.3 million users worldwide rely on it, mostly students and writers.

It rewrites sentences while keeping the original meaning intact.

The free version starts with two writing modes and adds more on Premium.

Most people use it to overcome writer’s block during 早い drafting.

Quillbotレビュー - 最高のAIライティングアシスタント?Quillbot文法チェッカーの詳細レビュー(2023年版)

🏆 Winner: QuillBot

⭐ 4.2/5 | 💰 月額4.17ドルから

Nine writing tools in one place. Paraphrase, summarize, translate and check grammar. The free plan handles 125 words per paraphrase.

QuillBotの価格設定

QuillBot keeps pricing low. Here are the plans.

プラン価格最適な用途
無料$0(永久無料)Casual rewriting and grammar checking
プレミアム月額4.17ドルUnlimited paraphrasing and all writing modes
チームプランカスタム価格設定Departments and research groups

価格は2026年7月に確定しました。

QuillBotの価格設定

無料トライアル: The free plan runs forever with limited features. No card is required.

返金保証: QuillBot lists a short refund window on annual billing. Check the current policy at checkout.

📌 注記: The $4.17 rate applies to annual billing. Monthly billing costs more, so compare both before you pick.

⚠️ 警告: The free version caps each paraphrase at 125 words. Long academic text needs several passes or a premium version upgrade.

QuillBotの主な利点

Here is what makes QuillBot the better pick for most writers:

  • Flexible rewriting: Writing modes include Standard, Fluency, Formal and academic mode. Each one shifts writing style without breaking your point.
  • Word-level control: A synonym slider swaps contextual synonyms and word forms. Freeze words lock technical terms you never want changed.
  • Fast grammar corrections: The checker 即座に corrects grammar in 4 English variants and 4 other languages.
  • 要約すると: The summarizer quickly extracts key points from long papers. You get a concise version in seconds.
  • Free citation tools: A citation generator handles common styles at no cost. Research assistance is limited but usable.
  • 簡単なスタート: There is a minimal learning curve. All the free features sit on one screen with no setup.

This short clip shows those benefits inside the editor.

QuillBotの主なメリット

The dashboard itself stays uncluttered, as you can see here.

QuillBotホームページ

私たちのチームが気づいたこと

Our writer ran QuillBot on a draft blog post and a conference abstract. Here is what came out of that session:

QuillBotの個人的な体験談

QuillBotの長所と短所

✅ メリット
  • Premium costs US$4.17 monthly on annual plans
  • Nine tools in one place, including a PDF converter and AI Humanizer
  • Grammar checking in 4 English variants and 4 other languages
  • User-friendly with a minimal learning curve
❌ デメリット
  • Can lose nuanced meanings in technical writing
  • Free version limits each paraphrase to 125 words
  • No submission readiness checks for journal publication

機能比較

These two AI writing tools overlap on paper but split in practice. Below we walk through nine features plus cost, so you can match each one to your own research process.

特徴ペーパーパルクイルボット
開始価格月額19ドル月額4.17
無料プラン
言い換えツール
Academic Translation
盗作チェッカー✅ (7,000 words free)✅(有料)
引用ジェネレータ✅ (10,000+ styles)✅ (limited styles)
Submission Readiness Checks
PDFコンバーター
AIヒューマナイザー
最適な用途Academic writing and journal publicationEveryday writing and fast rewriting

1. Paraphrasing and Rewriting

ペーパーパル: Rewrites with context-aware logic tuned to scholarly prose. It keeps discipline vocabulary in place while it works to simplify complex sentences. That protects meaning in dense academic text.

ペーパーパル

クイルボット: Built as a paraphrasing tool first, so speed is the draw. Contextual synonyms and word forms are adjustable on a slider. It specializes in quick, conversational, or basic rewriting.

QuillBot パラフレーズ画像

2. Grammar Checking

ペーパーパル: Flags punctuation errors and spelling errors alongside deeper structural notes. It offers 2-3 times more suggestions than competitors. Grammar suggestions carry an explanation, which builds academic writing skills over time.

ペーパーパル

クイルボット: Instantly corrects grammar with one click and no explanation screen. Grammar corrections cover 4 English variants and 4 other languages. It suits quick checks right before submission.

QuillBot文法チェッカー

3. Summarizing and Reading Research

ペーパーパル: Chat with a PDF and pull science-backed answers from 250 million published papers. You can save relevant articles to a library. This turns reading into part of the writing process.

ペーパーパル

クイルボット: The summarizer quickly extracts key points into bullets or a paragraph. It handles pasted text or uploaded files. There is no library for saving scholarly articles.

QuillBot要約ツール

4. Translation

ペーパーパル: The AI writing assistant produces accurate academic translations for non-native authors. Academic translation keeps field terminology rather than swapping it for plain wording. That matters in scientific writing.

クイルボット: A standalone translator covers dozens of languages for general use. Output reads naturally for everyday content. It can lose nuanced meanings in technical writing.

QuillBot翻訳機

5. 盗作チェック

ペーパーパル: Scans up to 7,000 words for plagiarism at no cost, in collaboration with Turnitin. For anyone worried about academic integrity, that free allowance is the single biggest advantage here.

ペーパーパル

クイルボット: The plagiarism checker sits behind the paid tier. Page allowances reset monthly. It reports matched sources clearly but does not tie into a university system.

QuillBot盗作チェッカー

⚠️ 警告: No checker guarantees a clean report from your institution. Run your own scan early, not the night before a deadline.

6. Citation Generation

ペーパーパル: Unlimited citation generation across 10,000+ styles, free. In text citations and full reference entries are both handled. Journals with unusual house styles are covered.

クイルボット: The free citation generator covers the styles most courses ask for. Coverage is narrower than Paperpal’s. For coursework rather than journal submission, it is enough.

QuillBot 無料引用生成ツール

7. AI Writing and Drafting

ペーパーパル: AI writing here is aimed at ai academic writing rather than blog copy. It can auto complete sentences in your own register. That helps you write research papers faster without drifting off tone.

クイルボット: An AI chat answers questions and drafts short passages. It is ideal for early-stage drafting or rephrasing. Output leans general rather than field-specific.

QuillBot AIチャット

8. AI Detection and Humanizing

ペーパーパル: An AI detector scores how much of a draft reads as ai generated content. It reports only. There is no rewriting layer attached to the score.

クイルボット: An AI Humanizer rewrites flagged passages into a looser register. Use it carefully. Disguising authorship still breaches most academic integrity policies.

QuillBot AIヒューマナイザー

9. Submission and File Handling

ペーパーパル: The paper checker runs submission readiness checks against journal rules. It reports technical compliance gaps such as missing sections or word limits. That is how a draft becomes submission ready.

ペーパーパル

クイルボット: A PDF converter moves files between formats without breaking layout. Useful for supervisors who return marked PDFs. It does not check journal requirements.

QuillBot PDFコンバーター

10. 価格設定とコスト

Cost is where the gap widens the most. Here are both plan structures side by side.

プランペーパーパルクイルボット
無料$0$0(永久無料)
有料Prime: $19/monthPremium: 4.17 per month
チームTeam Plan: Custom Pricing

ペーパーパル: You pay a research premium. The free tier is unusually generous for plagiarism and citations, so light users may never upgrade at all.

クイルボット: Premium costs roughly a quarter of Paperpal Prime. For that, you unlock every mode and remove the 125-word cap. It is the stronger value for general writing.

さまざまなシナリオ

必要な場合は選ぶなぜ
予算が限られているクイルボットRoughly a quarter of the price
Journal submissionペーパーパルSubmission readiness checks built in
Fast rewritingクイルボットAdjustable writing modes
Free plagiarism scanningペーパーパル7,000 words at no cost
Everyday contentクイルボットBroader tool set, simpler screen
初心者向けクイルボットMinimal setup, faster to learn

💰 あなたの予算

QuillBot Premium costs US$4.17 monthly on annual plans. Paperpal Prime sits at $19/month, so the yearly difference is large.

🔌 あなたの技術スタック

Paperpal has a strong Microsoft Word add-in that suits manuscript work. QuillBot leans on browser extensions and its own editor.

📝 あなたの文章スタイル

If you chase academic writing excellence and high quality research papers, Paperpal’s precise language suggestions fit better. For blogs, essays and reports, QuillBot is faster.

🎓 あなたの経験レベル

New writers get moving faster with QuillBot. Advanced features in Paperpal reward users who already know their field’s conventions.

🆓 無料トライアルとデモ

Both offer a genuine free tier, so test them on the same paragraph. Compare the language correction each one returns.

🛟 サポートオプション

Both run help centres and email support. Paperpal adds guidance shaped by professional academic editors, which is useful near a deadline.

切り替えガイド

Already using one of these? Here is what changes if you move.

🔄 Switching from Paperpal to QuillBot?

✅ 得られるもの:

  • 月々の請求額が大幅に削減される
  • A PDF converter and AI Humanizer
  • Freeze words and a synonym slider for fine control

❌ 失うもの:

  • Free plagiarism scanning of 7,000 words
  • Citation generation in 10,000+ styles
  • Journal compliance and deep scholarly context

📋切​​り替え方法:

  1. Export your Paperpal drafts and reference list
  2. Create a QuillBot account and add the browser extension
  3. Paste one finished section and set your preferred mode
🔄 Switching from QuillBot to Paperpal?

✅ 得られるもの:

  • Answers drawn from 250 million research articles
  • Submission readiness checks before you send a manuscript
  • 2-3 times more suggestions on every draft

❌ 失うもの:

  • The very low Premium price
  • The translator and PDF converter
  • Fast, casual rewriting for non-academic work

📋切​​り替え方法:

  1. Copy your QuillBot drafts into a Word file
  2. Install the Paperpal add-in for Microsoft Word
  3. Run the paper checker on one full section first

私たちのレビューで取り上げられなかったこと

This comparison focused on individual students, writers and researchers. We did not test QuillBot’s Team Plan, institutional licensing, or API access for either product. Our notes reflect the July 2026 versions, and both companies ship changes often. If you manage a department, your priorities will differ from what we covered here.

最終評決

カテゴリ勝者
💰価格クイルボット
🚀 Range of Toolsクイルボット
⚡ Speed of Rewritingクイルボット
🎯 Academic Accuracyペーパーパル
👶 使いやすさクイルボット
🔌 Word Integrationペーパーパル
📚 Citations and Researchペーパーパル
🏆総合優勝クイルボット

🏆 WINNER: QUILLBOT

QuillBot wins 4 out of 7 categories.

最適な用途: Students, everyday writing, fast paraphrasing, budget-conscious writers

These are two different products aimed at two different desks. QuillBot is a wide set of writing tools for anyone who writes often.

Paperpal is narrower and deeper. It is designed for academic and scientific writing, and it shows in the citation coverage and the paper checker.

Paperpal is the better tool if a journal decision depends on your draft. Many researchers keep both, using QuillBot to draft and Paperpal to polish.

For everyone else, QuillBot does more for less and is the pick we would make.

More of Paperpal Compared

Here is how Paperpal measures up against other academic writing platforms:

Paperpal vs ジェニー

Paperpalが勝利した点: free plagiarism scanning, citation styles at 10,000+, journal submission checks

ジェニが勝利した点: lower monthly cost, autocomplete drafting speed, friendlier editor for long first drafts

Paperpal vs Grammarly

Paperpalが勝利した点: subject-specific edits, manuscript compliance reports, research answers from 250 million articles

Grammarlyが優れている点: app coverage across email and Slack, tone detection, brand-voice settings for teams

Paperpal vs サイスペース

Paperpalが勝利した点: line-level editing quality, Word add-in workflow, tone control across a full manuscript

SciSpaceが勝利した点: literature discovery, paper explanation for dense methods, side-by-side reading view

This clip lines Paperpal up against several of those rivals.

QuillBotの比較をもっと見る

Here is how QuillBot stacks up against its closest rivals:

QuillBot vs Grammarly

QuillBotが勝利した点: cheaper annual pricing, stronger rewriting modes, built-in summarizer and translator

Grammarlyが優れている点: wider app integrations, clearer style explanations, team style guides

クイルボット対 ライトソニック

QuillBotが勝利した点: price, editing accuracy on existing text, PDF conversion and citation help

Writesonicが勝利した点: long-form generation from a prompt, SEO templates, marketing copy variety

クイルボット対 よむ

QuillBotが勝利した点: broader tool set, cheaper entry price, faster paraphrasing for everyday work

ヨムの勝利条件: essay-focused structure guidance, source management, tighter fit for coursework

Watch the head-to-head footage below.

2026年にQuillBot AIを活用する方法|知っておくべきことすべて!

And if none of these fit, this rundown covers wider alternatives.

AIと盗作に対抗するための、言い換えに最適なQuillbotの代替ツール

よくある質問

Is there anything better than QuillBot?

For academic work, Paperpal edits with more field awareness. For everyday rewriting and price, few tools beat QuillBot. The better option depends on what you write.

PaperPalは良いサービスですか?

Yes. It rates 4.1 in our scoring and gives 2-3 times more suggestions than rival tools. Its citation and plagiarism allowances are unusually generous on the free tier.

Do people get caught using QuillBot?

Sometimes. Detection tools flag rewritten passages, and supervisors notice tone shifts. Use it to tidy your own sentences rather than to disguise someone else’s work.

プロのライターはQuillBotを使っているのか?

Many do, mostly for tightening drafts and summarizing sources. Professionals treat the output as a starting point and edit it before anything gets published.

QuillBotは不正行為とみなされますか?

Not by itself. Rules vary by institution. Rewriting your own draft is usually fine, while passing off rewritten sources as original work is not.

ファヒム・ジョハーダー、創設者

ファヒム・ジョハーダー、創設者

900種類以上のAIツールをテスト済み。月間読者数25万人以上。

🤝 パートナーシップについて:

📩 fahim@fahimai.com または 電話予約をする

アフィリエイト開示:

当サイトは読者の皆様に支えられています。当サイトのリンクからご購入いただいた場合、アフィリエイト報酬が発生する場合があります。

レビューは執筆前に専門家によって作成され、実際の経験に基づいています。 編集ガイドライン そして プライバシーポリシー

関連記事