CastReader 每月有 55,999 次造訪，月增率 +9.8%，定價模式為免費增值。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 | castreader.com | zerogpt.com |
| 定價模式 | 免費增值 | 免費增值、付費 |
| 每月造訪次數 | 5.6萬 (55,999) | 3286.45萬 (32,864,541) |
| 月流量變化量 | +4983 (+9.8%) | +541.1萬 (+19.7%) |
| 主要市場與市佔 | 🇺🇸 美國 (56%) | 🇺🇸 美國 (43%) |
| 每月直接造訪 | 1.97萬 | 822萬 |
| 使用者評分 | 4.4 | 3.8 |
| 支援平台 | 網站 | 網站 |
為網頁、PDF、Kindle 電子書與 AI 回答朗讀，並同步高亮
自然 AI 語音朗讀網頁、PDF、電子書與文件，逐字高亮並自動捲動，讓你始終不迷路。
不只朗讀難段，還用你最熟悉的語言總結並拆解其含義，同時以動畫筆在原文中標註關鍵句。
涵蓋 Kindle、微信讀書、Google Play Books、O'Reilly 等圖書平台，新聞與訂閱網站，Google Docs、Notion、Gmail，以及 ChatGPT、Claude、Gemini、DeepSeek、Kimi 的回答。
試聽多種語言的真實語音樣本，並可建立私人複製聲音，Pro 會員可套用於自己的 PDF、EPUB、Word、TXT 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。
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。
專項更強Online writing suite blending AI humanization tools with plagiarism and readability checking features.
高精準度的 AI 內容偵測器，可同時掃描文字與上傳的圖片以辨識是否為機器生成。
