⚡ 簡単な評価:
- 価格: Writesonic starts at $39/month (Lite). QuillBot has a free plan and Premium from $4.17 per month.
- 最適な用途: Writesonic for bulk content generation and SEO content. QuillBot for paraphrasing, grammar checking, and academic work.
- 主な違い： Writesonic writes long form content from scratch. QuillBot refines text you already have.
- 私たちのおすすめ： QuillBot for most users, because the free version covers real work at zero cost.
These two tools rarely compete for the same job.
Writesonic is an AI writing tool built to generate content at volume.
QuillBot is a writing assistant built to fix what you already wrote.
One drafts the blog post. The other cleans up the sentences.
Price separates them too, and the gap is wide.
概要
This Writesonic vs Quillbot comparison covers pricing, key features, and content quality.
We also cover who each tool actually suits.
弊社のライター陣は、両方のプラットフォームを実際に操作して検証しました。
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。
Published specs, pricing pages, and Trustpilot reviews fill the gaps.
Positive reviews and refund complaints both shaped this detailed review.
Writesonicとは何ですか?
Writesonic is an AI writing tool that launched in 2020.
It handles the full content creation process, from research to publishing.
Writesonic features lean toward search engines, not literary prose.
Teams use it to write content at a pace humans cannot match.
You can generate content for blog articles, ad copy, and social media posts.
It also covers email copy, video scripts, product descriptions, and e-commerce pages.
Writesonic AI can be trained on your brand 声 for consistent messaging.
This Writesonic review video walks through the dashboard.
ライトソニック
Built for teams that publish a lot. The AI Article Writer drafts blog content in minutes. SOC 2, GDPR, and HIPAA certified.
Writesonicの価格設定
Here is what a Writesonic subscription costs in 2026.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| ライト | $39 | Solo bloggers testing article writing |
| 標準 | $79 | フリーランサー producing weekly website content |
| 教授 | $199 | Small teams running a content strategy |
| 高度な | $399 | Agencies doing bulk content generation |
| 企業 | カスタム価格設定 | Large brands needing custom データ retention |
Pricing verified August 2026.
無料トライアル: Writesonic offers a free plan with a monthly word allowance and a one-user limit. No credit card needed to start.
返金保証: Refunds are handled case by case through the support team. There is no blanket 30-day refund window.
📌 注記： Writesonic uses a credit system. Each generation costs one credit, so heavy article writing burns through an allowance faster than short ad copy.
⚠️ Pricing conflict: Our CSV records five tiers starting at Lite $39. Third-party research and older listings mention a $19/month Pro tier, $13/month annual billing, and a $45 unlimited credit tier. We publish the CSV figures here. Check the live pricing page before you buy.
Key Benefits of Writesonic
Here is what makes Writesonic worth a look:
- AI Article Writer 6.0: Drafts fact-checked posts of 1,500 words in under a minute. It can push to 5,000 words from a simple prompt.
- In depth research first: The article writer scans competitors and target keywords before writing. You get an outline with H1, H2, and H3 headings.
- SEO tools built in: A キーワードリサーチ tool shows search volume and traffic potential. The SEO チェッカー flags readability and keyword gaps.
- SurferSEO and Google Search Console: Both connect directly, so SERP and keyword data land inside the writing process.
- Chatsonic AI chat assistant: Handles market research, competitor checks, and content ideas without leaving the dashboard.
- Publishing and integrations: One-click publishing to WordPress, plus ザピエール, Google Docs, Slack, and HubSpot.
- コンプライアンス： SOC 2 Type II, GDPR, and HIPAA certification make it usable in regulated industries.
私たちのチームが気づいたこと
Our writer signed up for Writesonic and used it for real blog writing tasks. Here is what stood out from that hands-on time:
Writesonic Pros & Cons
✅ メリット
- Writes long form content fast, which cuts hours off the content creation process
- Clean user interface that beginners and advanced users both pick up quickly
- Real SEO features, including keyword research, a content gap analysis tool, and an SEO checker
- Covers marketing materials, Google Ads copy, landing pages, and product descriptions in one place
- Supports over 25 languages and can match a specific writing style
❌ デメリット
- Output can read robotic, so AI generated content still needs a personal touch
- Entry price is far above most other AI writing tools
- G2 and Trustpilot reviews flag slow support replies and billing problems
- Credits run down quickly once you generate content daily
QuillBotとは何ですか？
QuillBot is an AI writing assistant built on natural language processing.
Three University of Illinois students founded it in 2017.
Learneo acquired the company in September 2021.
The paraphrasing tool is still the reason most people show up.
現在、月間アクティブユーザー数は3000万人を超えていると報告されている。
QuillBot features go well past that one rewriting box.
QuillBot makes editing faster instead of replacing the writer.
QuillBot reviews on Trustpilot average 3.5 out of 5, so opinions split.
This QuillBot review video shows the paraphraser tool in use.
🏆 Winner: QuillBot
The free version handles paraphrasing and grammar checking with no time limit. Premium adds every writing mode and higher word limits.
QuillBotの価格設定
QuillBot pricing splits into three tiers.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | $0（永久無料） | Students on a school project |
| プレミアム | 月額4.17 | Writers who need every writing mode |
| チームプラン | カスタム価格設定 | Departments sharing one QuillBot subscription |
Pricing verified August 2026.
無料トライアル: The free version never expires. You get limited paraphrasing words per go and two writing modes.
返金保証: QuillBot lists a three-day refund window on Premium. Requests go through the support team.
📌 注記： The $4.17 rate reflects the longest billing term. Shorter terms cost more per month, and the annual plan bills as one upfront charge.
⚠️ Pricing conflict: Our CSV lists Premium at 4.17 per month. Third-party sources put the real monthly range at $8.33 to $20, depending on subscription length. We publish the CSV figure in every table here. Confirm on the checkout page before paying.
QuillBotの主な利点
Here is where QuillBot helps most:
- Seven paraphrasing modes: Standard, fluency, formal mode, simple, creative mode, expand mode, and shorten mode. Each one shifts between writing styles in a click.
- Grammar checker: Catches errors as you type and explains the fix. Checking grammar costs nothing on the free plan.
- 要約: Pulls key points out of long documents. Useful when you need the argument, not the full text.
- 引用 ジェネレータ and plagiarism checker: Create citations in APA, MLA, or Chicago and scan drafts before submission.
- Works where you write: The QuillBot extension runs in Chrome and other web browsers, plus Microsoft Word and Google Docs.
- 翻訳者: Real-time translation across 45+ languages, including French, Spanish, German, and Chinese.
- QuillBot Flow: A word processor that keeps research, notes, paraphrasing, and citations in one workspace.
私たちのチームが気づいたこと
Our writer ran drafts through QuillBot across a stretch of editing work. Here is what stood out about the writing experience:
QuillBotの長所と短所
✅ メリット
- The free version covers paraphrasing and grammar checking with no expiry date
- Seven writing modes let you compare paraphrases and pick the best fit
- Paraphrase tool, summarizer, translator, and citation generator sit in one workspace
- Extensions for Chrome, MS Word, and Google Docs keep the writing process in one tab
- Premium costs a fraction of what most AI writing tools charge
❌ デメリット
- It refines text but will not draft a full article from a topic
- Paraphrasing can turn out awkward on complex sentences
- Trustpilot sits at 3.5 out of 5, with refund complaints a common theme
- The iOS app draws criticism for crashes and weaker performance than desktop
機能比較
Below are ten areas where these two tools actually differ. Some categories only one of them competes in, and we say so plainly.
| 特徴 | ライトソニック | クイルボット |
|---|---|---|
| 開始価格 | 月額39ドル | 0ドルの無料プラン |
| 無料プラン | ✅ | ✅ |
| AI記事ライター | ✅ | ❌ |
| Paraphrasing Modes | ❌ | ✅ (7 modes) |
| 文法チェッカー | ✅ | ✅ |
| 盗作チェッカー | ❌ | ✅ |
| 引用ジェネレータ | ❌ | ✅ |
| キーワードリサーチ | ✅ | ❌ |
| コンテンツギャップ分析 | ✅ | ❌ |
| 最適な用途 | Bulk content generation | Editing and academic writing |
1. Article Writing and Long Form Content
ライトソニック: The AI article writer asks what kind of piece you want, then does in depth research on competitors and keywords. It returns an outline, then a full draft. You control length, target keywords, and how many relevant details to include.
クイルボット: There is no article writer here. The closest tool is the summarizer, which condenses long text into key points. QuillBot works on text you supply, not on a topic prompt.
⚠️ 警告： If you need to write articles from scratch, QuillBot cannot do it. This one category decides the tool for a lot of people.
2. Paraphrasing and Writing Modes
クイルボット: The paraphrase tool rewrites text while holding the original meaning. Seven modes cover standard, fluency, formal, simple, creative, expand, and shorten. You can compare paraphrases side by side, and a synonym slider controls how far it strays.
ライトソニック: Rewriting exists, but it is a side feature rather than the main event. There is no mode picker and no slider for how aggressive the rewrite gets.
💡 ヒント： QuillBot also ships a mobile keyboard. The QuillBot keyboard brings the same paraphrasing options to your phone, and prediction settings control text and emoji prediction while you type a text message.
3. Grammar Checking and Editing
クイルボット: The grammar checker flags errors and explains each correction, which nudges writing skills forward over time. It is free, with no daily cap. Some reviews note weak suggestions on longer, complex sentences.
ライトソニック: Editing tools exist inside the editor, and you can refine any draft before publishing. But grammar checking is a supporting act next to content generation.
4. Plagiarism, Citations and Academic Integrity
クイルボット: The plagiarism checker scans a document and highlights matched passages before you submit. It is the reason many students treat this as a useful tool rather than a shortcut.
The citation side matters just as much for academic integrity.
ライトソニック: No plagiarism scan and no citation ビルダー. It is aimed at marketing teams, not at anyone tracking an essay’s word count and reference list.
5. Translation and Document Handling
クイルボット: Real-time translation covers 45+ languages, which helps with professional communication across teams. The output still needs a native read before it goes out.
A PDF converter sits alongside it for source documents.
ライトソニック: Content generation runs in over 25 languages, so global campaigns stay in one dashboard. There is no standalone translator and no PDF conversion.
6. SEO Content and Keyword Research
ライトソニック: Volume Explorer handles keyword research with search volume and traffic estimates. The SEO checker then grades a draft and suggests fixes. SurferSEO and Google Search Console feed live SERP data into the editor.
An SEO agent can also run those steps on a schedule.
クイルボット: No keyword tools at all. If SEO content is your goal, QuillBot only helps at the editing stage.
7. Content Gap Analysis and Site Audits
ライトソニック: Content gap analysis compares your site against competitors and surfaces topics you have missed. That output feeds straight into new content ideas.
その 監査 tool then finds technical issues, including broken automated internal linking, and offers one-click fixes.
クイルボット: Nothing comparable. QuillBot never touches your site, so audits and internal links stay outside its scope.
8. AI Chat Tools and Search Visibility
ライトソニック: Chatsonic can pull real time data for market research and competitor checks. It drafts everything from a ユーチューブ title to a full campaign brief.
Higher tiers add AI visibility tracking, which shows how each AI model cites your brand.
クイルボット: The AI chat answers questions and explains edits, but it stays inside the writing workspace. Among chat tools, it is the narrower of the two.
9. Humanizing AI Generated Content
ライトソニック: A humanizer pass softens machine phrasing before publishing. G2 reviews still describe raw output as robotic, so a human edit stays part of the job.
クイルボット: The AI humanizer rewrites stiff text into something that reads like a person wrote it. Because QuillBot refines rather than generates, this feels closer to editing than laundering. Among AI tools in this lane, the tool’s ability to keep meaning intact beats most other AI writers.
10. 価格設定とコスト
This is where the gap gets hard to ignore.
| ティア | ライトソニック | クイルボット |
|---|---|---|
| 無料 | Free plan with word limit | $0（永久無料） |
| 入場料支払い済み | Lite: $39 | Premium: 4.17 per month |
| 中 | Standard: $79 | — |
| より高い | Professor: $199 / Advanced: $399 | — |
| チーム | 企業向け：カスタム価格設定 | Team Plan: Custom Pricing |
ライトソニック: At $39 for Lite you are buying a full content platform, not a writing helper. Agencies running bulk content generation get the most from Advanced at $399.
クイルボット: The free plan is an excellent starting point and a valuable resource for students. Premium unlocks all the features, including every writing mode and unlimited access to the paraphraser. As mentioned earlier, we publish the CSV rate.
💡 Cost check: Writesonic’s cheapest paid tier costs roughly nine times QuillBot Premium in our CSV. That gap only makes sense if you need the article writer and SEO stack.
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 | Free plan does real work |
| Blog writing at volume | ライトソニック | AI article writer drafts full posts |
| Cleaner sentences | クイルボット | Best paraphrasing tool of the two |
| キーワード調査 | ライトソニック | Volume Explorer and SEO checker |
| 学術論文 | クイルボット | Citations and plagiarism checker |
| Landing pages and ads | ライトソニック | Templates for Google Ads and copy |
💰 あなたの予算
QuillBot’s free version costs nothing and never expires. Writesonic asks for $39 a month before you write a single article.
🔌 あなたの技術スタック
Writesonic pushes to WordPress, Zapier, Slack, and HubSpot. QuillBot lives in MS Word, Google Docs, and your web browsers.
📝 あなたの文章スタイル
Writesonic can be trained on your brand’s tone for consistent marketing materials. QuillBot bends an existing draft toward a specific writing style instead.
🎓 あなたの経験レベル
Both have a user friendly interface, so beginners are fine either way. Advanced users get more depth from Writesonic’s SEO stack.
🆓 無料トライアルとデモ
Run one real task through each before paying. Draft a landing page in Writesonic, then rewrite it in QuillBot.
🛟 サポートオプション
Both take criticism here. Reviews mention slow replies at Writesonic and refund disputes at QuillBot, so keep your receipts.
切り替えガイド
Already paying for one? Here is what changes.
🔄 Switching from Writesonic to QuillBot?
✅ 得られるもの：
- A much lower bill, and a free tier that keeps working
- Seven paraphrasing modes and a plagiarism checker
- Citation tools for academic work
❌ 失うもの：
- The AI article writer and long form drafting
- Keyword research, audits, and content gap analysis
- One-click publishing to WordPress
📋切り替え方法：
- Export your drafts and brand 声 notes from Writesonic
- Start on the QuillBot free plan and install the extension
- Cancel Writesonic only after a full editing cycle works
🔄 Switching from QuillBot to Writesonic?
✅ 得られるもの：
- Full article drafting, plus templates to generate landing pages
- SEO data from SurferSEO and Google Search Console
- Chatsonic for research and content ideas
❌ 失うもの：
- The free safety net, since every Writesonic tier is paid past the trial
- Mode-based paraphrasing and the summarizer
- Citation and plagiarism tools
📋切り替え方法：
- Save any documents stored in QuillBot Flow
- Open a Writesonic trial and connect WordPress
- Train the AI on your brand voice before your first campaign
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 solo writers and small teams. We did not test Enterprise contracts, custom data retention terms, or team billing at scale. Mobile use got limited attention, so app privacy, data safety, bug fixes, dark themes, and keyboard modes are outside what we can speak to. Read QuillBot’s terms and Writesonic’s data policy yourself if compliance drives your decision.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | クイルボット |
| 🚀 Article Writing | ライトソニック |
| ✍️ Editing and Rewriting | クイルボット |
| 🎯 Content Quality Control | クイルボット |
| 👶 使いやすさ | クイルボット |
| 🔌 SEO and Integrations | ライトソニック |
| 🎓 Academic Work | クイルボット |
| 🏆総合優勝 | クイルボット |
🏆 WINNER: QUILLBOT
QuillBot wins 5 of 7 categories.
最適な用途: Students, editors, non-native writers, and anyone who wants an AIツール that improves text they already have.
QuillBot takes it on value and rating, not on raw capability. It costs a fraction of Writesonic and does its narrow job well. That combination benefits users who write regularly but do not publish at scale.
Writesonic is the better buy for one specific reader. If your week involves creating content for blogs, ads, and website content at volume, the article writer will save time no editing tool can match.
Buy Writesonic for producing high quality content fast. QuillBot is a great tool for making existing quality content better.
More of Writesonic Compared
Here is how it lands against other AI writing tools:
Writesonic vs ジャスパーAI
Writesonicが勝利した点： Lower entry price, an easier first hour, and credit-based billing you can size to your output
ジャスパーの勝利点： Deeper brand voice controls, a longer template library, and stronger campaign workflows for large teams
Writesonicが勝利した点： Broader output types, Chatsonic research, and one-click publishing to WordPress
フレーズ 勝利したタイトル： Tighter SERP briefs, cheaper solo pricing, and a workflow built purely around ranking pages
Writesonic vs スケールナッツ
Writesonicが勝利した点： Compliance certifications, ad and social templates, and AI visibility tracking on higher tiers
Scalenutが勝利した点： Cluster planning, a gentler price ladder, and cleaner topic maps for a content strategy
Writesonic vs ニューロンライター
Writesonicが勝利した点： Full drafting from a prompt, 25+ languages, and a friendlier editor for non-technical users
Neuronwriterが以下の点で勝利しました： Cheap lifetime-style plans, granular NLP term scoring, and precise competitor markup
QuillBotの比較をもっと見る
これらは QuillBotの代替品 worth a look:
QuillBotが勝利した点： Mode-based paraphrasing, a cheaper premium version, and a built-in summarizer
Grammarlyが優れている点： Sharper grammar corrections, tone detection, and wider app coverage across desktop and mobile
QuillBotが勝利した点： A free plan that lasts, translation across 45+ languages, and general-purpose rewriting
ペーパーパル 勝利したタイトル： Journal-specific edits, subject-aware suggestions, and manuscript submission checks
QuillBotが勝利した点： Price, browser extensions, and a paraphraser most students already know
ヨムの勝利条件： Structured エッセイ drafting, source-linked writing, and guidance built around a full paper
QuillBotが勝利した点： Faster everyday editing, a simpler interface, and stronger name recognition
ペーパーガイド 勝利したタイトル： Reference library management, PDF chat for research, and literature review support
This video runs through more of them.
よくある質問
Writesonicは完全に無料ですか？
No. There is a free plan with a monthly word cap and one user seat. Paid tiers start at $39 in our pricing data.
Writesonicよりも優れたものは何ですか？
There is no single best AI writer here. Jasper AI suits brand teams, Frase suits SEO briefs, and QuillBot is the best Writesonic alternative for editing.
QuillBotは本当に無料ですか？
Yes, the free tier is free forever. You get limited paraphrasing words per pass and two modes. Premium removes those caps.
QuillBotは不正行為をしているのか？
Rewording your own draft is normally fine. Rewording someone else’s work to dodge detection is not. Check your school’s policy first, and always cite sources.
QuillBotにお金を払う価値はありますか？
If you edit text weekly, yes. Premium unlocks every mode, longer inputs, and the plagiarism scan. Occasional users stay fine on free.
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