CastReader 每月有 55,999 次造訪，月增率 +9.8%，定價模式為免費增值。Studocu 每月有 39,297,122 次造訪，成長率 +1.1%，定價模式為免費增值。
Studocu is a global study platform where students share and access lecture notes, summaries, study guides and past exams, with an AI assistant, quizzes, flashcards and note tools to help them learn faster.
| 面向／指標 |  | |
|---|---|---|
| 官方網域 | castreader.com | studocu.com |
| 定價模式 | 免費增值 | 免費增值 |
| 每月造訪次數 | 5.6萬 (55,999) | 3929.71萬 (39,297,122) |
| 月流量變化量 | +4983 (+9.8%) | +43.05萬 (+1.1%) |
| 主要市場與市佔 | 🇺🇸 美國 (56%) | 🇺🇸 美國 (12.3%) |
| 每月直接造訪 | 1.97萬 | 649.61萬 |
| 使用者評分 | 4.4 | 4.4 |
| 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。
Studocu is a global study platform where students share and access lecture notes, summaries, study guides and past exams, with an AI assistant, quizzes, flashcards and note tools to help them learn faster.
Search a vast, student-contributed library of lecture notes, summaries, study guides and past exams organised by course and institution.
Generate notes, summaries and revision material from documents so you can study the essentials instead of re-reading everything.
Turn study material into interactive quizzes and flashcards so you can test yourself and target weak spots.
Use built-in text-to-speech to listen to study documents on the go, useful for revision during commutes or downtime.
專項更強General-purpose conversational AI that can explain complex concepts and make practice quizzes, but lacks dedicated study note repositories.
專項更強Tailored for specific exam prep and coursework feedback with an AI tutor, rather than open note sharing.
專項更強Tailored for specific exam prep and coursework feedback with an AI tutor, rather than open note sharing.
具備優秀的 AI 影片解說和互動學習集，但缺乏 Studocu 龐大的群眾外包課程筆記庫。
兩者都有類似的大學共用文件資料庫與讀書工具，但這款更聚焦於歐洲學生社群。
專項更強Converts course notes into personalized flashcards and mind maps, but lacks crowdsourced document sharing.
