Knowt 每月有 4,183,953 次造訪，月增率 +5.4%，定價模式為免費。Prolific 每月有 18,697,671 次造訪，成長率 -1.8%，定價模式為付費。
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.
| 面向／指標 | ||
|---|---|---|
| 官方網域 | knowt.com | prolific.com |
| 定價模式 | 免費 | 付費 |
| 每月造訪次數 | 418.4萬 (4,183,953) | 1869.77萬 (18,697,671) |
| 月流量變化量 | +21.48萬 (+5.4%) | -35.2萬 (-1.8%) |
| 主要市場與市佔 | 🇺🇸 美國 (69.6%) | 🇺🇸 美國 (48.8%) |
| 每月直接造訪 | 274.15萬 | 1297.97萬 |
| 使用者評分 | 4.3 | 4.6 |
| 支援平台 | 網站 | 網站 |
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.
Upload up to 30 files and Kai instantly produces notes, flashcards, summaries, and practice resources from them.
Convert Quizlet, Kahoot, Wayground, and YouTube content, or record live lectures to generate notes and study sets.
Upload class files to get a study plan and exam prediction that highlights what your professor emphasizes most.
Kai quizzes you by voice and can turn any note or flashcard into a podcast for study on the go.
為 AI 訓練、評估與研究提供高品質人類資料
依詳細的人口統計、職業與行為條件篩選參與者，觸達小眾或具代表性的樣本，而非泛泛的人群。
採集用於模型微調的人類偏好資料，執行安全性評估與紅隊測試，並透過回饋 API 把人工環節接入自動化流程。
注意力檢驗、誠實度篩查與審批流程，協助你在分析結果前剔除敷衍或欺詐性回答。
發布研究後能迅速開始收集回答，工具支援篩選條件、配額設定與縱向研究設計。
專項更強Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
專項更強Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
互動式 AI 學習平台，可將課程教材轉為字卡和測驗，但包含更多影片解說。
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.
University learning platform combining shared notes with AI flashcard generation, but heavier community focus.
University learning platform combining shared notes with AI flashcard generation, but heavier community focus.
