Goodnotes 每月有 3,227,341 次造訪，月增率 +10.8%，定價模式為免費增值、免費試用。ZeroGPT 每月有 32,864,541 次造訪，成長率 +19.7%，定價模式為免費增值、付費。
ZeroGPT is an AI content detection platform with a text AI detector, AI image and video detectors, AI humanizer, plagiarism checker, and a set of writing tools including paraphraser, summarizer, grammar checker, translator, and citation helper.
| 面向／指標 |  | |
|---|---|---|
| 官方網域 | goodnotes.com | zerogpt.com |
| 定價模式 | 免費增值、免費試用 | 免費增值、付費 |
| 每月造訪次數 | 322.73萬 (3,227,341) | 3286.45萬 (32,864,541) |
| 月流量變化量 | +31.47萬 (+10.8%) | +541.1萬 (+19.7%) |
| 主要市場與市佔 | 🇺🇸 美國 (33.8%) | 🇺🇸 美國 (43%) |
| 每月直接造訪 | 163.89萬 | 822萬 |
| 使用者評分 | 4.4 | 3.8 |
| 支援平台 | 網站 | 網站 |
手寫筆記、PDF 註記與 AI 學習工具，都在同一塊畫布上
低延遲墨跡、防誤觸手掌辨識、劃掉即擦除以及手寫轉文字，讓書寫接近紙筆手感。
匯入合約、論文或教材，用手直接標註，註記可搜尋並可乾淨匯出。
同時檢索鍵入文字、手寫與速寫，並把筆記轉成摘要、心智圖或結構化計畫。
在共享筆記本、文件和白板上同時協作，不再有版本衝突或反覆傳檔案。
ZeroGPT is an AI content detection platform with a text AI detector, AI image and video detectors, AI humanizer, plagiarism checker, and a set of writing tools including paraphraser, summarizer, grammar checker, translator, and citation helper.
Paste up to 15,000 characters or upload a file and get a highlighted breakdown of which sentences appear AI-written, plus an overall percentage score and a downloadable PDF report.
Beyond text, ZeroGPT offers an AI image detector and an AI video detector that performs frame-level analysis to flag generated or manipulated visuals.
Compare your text against billions of sources through the plagiarism checker, or rewrite and humanize AI text with the paraphraser and AI humanizer while keeping the original meaning.
A bundled writing suite covers summarization, grammar and spelling correction, translation across many languages, a dictionary, word and character counting, citation generation, and an AI email writer.
專項更強Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
專項更強Cross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
專項更強Popular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
專項更強Popular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
專項更強Academic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
專項更強Academic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
結合了可靠的 AI 偵測與先進的文字真人化工具，能自然地改寫機器生成的內容。
專為數位出版商打造的全方位內容完整性平台，主打精準的 AI 偵測與抄襲檢查。
專項更強將課程教材轉化為互動式 AI 學習工具，但較少專注於手寫數位筆記本。
專項更強Stronger online PDF editing and AI chat capabilities, but lacks tablet-optimized handwritten note-taking workflows.
專項更強Stronger online PDF editing and AI chat capabilities, but lacks tablet-optimized handwritten note-taking workflows.
專項更強Converts notes and PDFs into quizzes and flashcards, but lacks stylus-based handwriting and sketching tools.
專項更強Converts notes and PDFs into quizzes and flashcards, but lacks stylus-based handwriting and sketching tools.
支援多國語言的 AI 內容偵測平台，提供詳細的句子層級評分與寫作完整性工具。
