Grammarly 每月有 58,867,412 次造訪，月增率 -1.5%，定價模式為免費增值。Learnitive 每月有 0 次造訪，成長率 —，定價模式為免費增值。
提供即時文法糾錯、語氣校準、寫作來源追蹤與團隊風格指南的跨平台 AI 寫作助理。
| 面向／指標 | |  |
|---|---|---|
| 官方網域 | grammarly.com | chromewebstore.google.com |
| 定價模式 | 免費增值 | 免費增值 |
| 每月造訪次數 | 5886.74萬 (58,867,412) | 0 (0) |
| 月流量變化量 |
| -91.61萬 (-1.5%) |
| 0 (—) |
| 主要市場與市佔 | 🇺🇸 美國 (51.9%) | 🌐 全球 (—) |
|---|
| 每月直接造訪 | 2539.87萬 | 0 |
|---|
| 使用者評分 | 4.4 | 1.8 |
|---|
| 支援平台 | 網站 | 瀏覽器擴充功能 |
|---|
提供即時文法糾錯、語氣校準、寫作來源追蹤與團隊風格指南的跨平台 AI 寫作助理。
在 Chrome、Safari、Firefox、Edge、Windows、Mac、Google Docs、MS Office 與行動鍵盤中原生運行，標出文法錯誤、重寫繞口句子，並將語氣轉向自信、共情或高階主管口吻。
部署具上下文感知的 AI 代理，預測目標受眾會如何反應草稿、定位可信的支撐引文、依評分規準批改文章，並在 Pro 方案下每月使用最多 2,000 次提示生成草稿。
對照數十億網頁與學術資料庫掃描文字以找出無意抄襲，識別 AI 生成的段落，並透過 Google Docs 與 Word 中的 Authorship 報告透明記錄文件來源。
讓 Pro 與 Enterprise 方案的團隊能夠固化公司術語、禁用過時行話、強制使用包容性語言、插入共享片段，並在行內顯示公司內部定義。
面向學術與 SEO 內容的 AI 寫作助手
直接在 Google Docs、Office 365 與 LaTeX／Overleaf 中生成與編輯內容，而非另開聊天視窗。
在考量周遭輸入的前提下修正文法、拼字、詞彙、標點、風格與措辭。
可選 fast、balanced、strong 或 expert 模型，在回應速度與輸出深度之間取捨。
產出品質高、結構清晰的文本，力求流暢且具原創性，適合科研與 SEO 情境。
專項更強Outstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.
#1QuillBot is an AI writing suite best known for its paraphrasing tool. Users paste or type text and have it rewritten in different tones and styles, while companion tools handle grammar checking, summarizing, citations, plagiarism checks and AI content detection. It is widely used by students, writers and professionals.
#2
Jenni is an AI research and academic writing workspace that helps students, researchers, and academics read, write, and cite in one place. Bring in PDFs or import a Zotero or Mendeley library, and Jenni's autocomplete suggests sentences grounded in your own sources, with every suggestion linked to the exact page and paragraph. A built-in writer, AI chat, citation engine covering 10,000+ styles, and a Reviews tool for catching weak or unverified claims make it a full environment for producing cited papers.
Paperpal is an AI writing assistant built for researchers, academics, and students. It proofreads and rewrites academic prose in real time, suggests citations, checks references, and reads PDFs — all from inside Microsoft Word, Google Docs, Overleaf, the Chrome extension, or the web editor.
專項更強能視覺化突顯可讀性與句子複雜度，但缺乏自動語法修正和全瀏覽器擴充功能支援。
非常適合句子層級的語氣調整與重寫，但在獨立的文法規則與風格指南方面較不全面。
QuillBot is an AI writing suite best known for its paraphrasing tool. Users paste or type text and have it rewritten in different tones and styles, while companion tools handle grammar checking, summarizing, citations, plagiarism checks and AI content detection. It is widely used by students, writers and professionals.
結合同儕級學術校對、抄襲比對與 AI 寫作工具
支援 30 多種語言的 AI 文法、拼字與風格檢查工具
提供更深入的文稿分析與結構報告，但學習曲線比 Grammarly 陡峭。
Jenni is an AI research and academic writing workspace that helps students, researchers, and academics read, write, and cite in one place. Bring in PDFs or import a Zotero or Mendeley library, and Jenni's autocomplete suggests sentences grounded in your own sources, with every suggestion linked to the exact page and paragraph. A built-in writer, AI chat, citation engine covering 10,000+ styles, and a Reviews tool for catching weak or unverified claims make it a full environment for producing cited papers.
Paperpal is an AI writing assistant built for researchers, academics, and students. It proofreads and rewrites academic prose in real time, suggests citations, checks references, and reads PDFs — all from inside Microsoft Word, Google Docs, Overleaf, the Chrome extension, or the web editor.
專項更強能視覺化突顯可讀性與句子複雜度，但缺乏自動語法修正和全瀏覽器擴充功能支援。
自帶真實文獻與自動引文的 AI 學術寫作工具
具備自動補全、研究與 Chrome 擴充功能的 AI 寫作助手
面向團隊與專業人士的 AI 文法檢查與寫作助手
