免費增值
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正面對決基準比較
Deta Surf vs Flexnote
Deta Surf 每月有 5,322 次造訪，月增率 -49%，定價模式為免費。Flexnote 每月有 41,017 次造訪，成長率 +113.1%，定價模式為免費增值。
Deta Surf 每月有 5,322 次造訪，月增率 -49%，定價模式為免費。Flexnote 每月有 41,017 次造訪，成長率 +113.1%，定價模式為免費增值。
本地優先的無限畫布視覺筆記，結合心智圖與知識庫 AI
| 面向／指標 |  | |
|---|---|---|
| 官方網域 | deta.surf | myflexnote.com |
| 定價模式 | 免費 | 免費增值 |
| 每月造訪次數 | 5322 (5,322) | 4.1萬 (41,017) |
| 月流量變化量 | -5115 (-49%) | +2.18萬 (+113.1%) |
| 主要市場與市佔 | 🇺🇸 美國 (33.9%) | 🇨🇳 中國 (74.6%) |
| 每月直接造訪 | 2041 | 1.76萬 |
| 使用者評分 | 4.4 | 4.4 |
| 支援平台 | 網站 | 網站 |
把瀏覽內容、檔案與影片變成筆記的智慧筆記本
把網頁、PDF、圖片、筆記與草圖集中到一個空間，不再在多個應用間切換。
內容存於你的裝置，支援匯入匯出，核心原始碼在 GitHub 公開。
用自己的 API Key 連接雲端大模型，或執行本地模型，自行選擇智慧層。
產生的筆記直接連結回其來源網頁、影片或文件。
本地優先的無限畫布視覺筆記，結合心智圖與知識庫 AI
在畫布上任意擺放卡片，再切換心智圖或資料庫檢視查看結構，無需重排筆記。
在畫布上標亮、批註 PDF，並對影片做時間戳筆記；標亮會自動變成參考卡片。
語意搜尋、知識庫問答與內容檢索幫你找到對的筆記；聊天可使用你自己的模型 API 金鑰。
檔案預設存在裝置上，可透過 WebDAV、S3、OneDrive 或百度網盤跨裝置同步，憑證由你掌握。
Knowt is a free study platform and the most popular Quizlet alternative, combining flashcards, note-taking, and AI study tools. Students can turn PDFs, lecture recordings, slides, and videos into flashcards, notes, and practice tests automatically.
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.
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.
Whimsical is a collaborative visual workspace that combines diagrams, flowcharts, mind maps, wireframes, documents and whiteboards on one infinite canvas, with AI tools that turn a prompt into a structured visual in seconds.
把任何學習素材變成視覺化學習集、閃卡與測驗
專項更強ThetaWave AI is an AI note taker for students that captures live lectures and converts PDFs, slides, videos, YouTube links, and articles into structured notes, flashcards, quizzes, and mind maps — all in one study workspace.
專項更強ThetaWave AI is an AI note taker for students that captures live lectures and converts PDFs, slides, videos, YouTube links, and articles into structured notes, flashcards, quizzes, and mind maps — all in one study workspace.
專項更強Summarizer.org is a free AI summarizer that condenses text, articles, essays and documents into paragraph or bullet-point summaries with adjustable length.
專項更強Summarizer.org is a free AI summarizer that condenses text, articles, essays and documents into paragraph or bullet-point summaries with adjustable length.
