Knowt 记录了 4,183,953 月访问量，月度环比增长为 +5.4%，定价为免费。Sofos 记录了 0 月访问量，增长率为 0%，定价为定价请咨询。
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.
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.
本地优先的桌面工作空间，文档编辑器与你的 AI 智能体共用同一批文件
熟悉的文档编辑器与能读写同一批文件的 AI 智能体并列存在，草稿、修改与研究都留在同一个地方。
Sofos 不售卖 AI，而是用你自己的订阅运行 Claude Code 或 Codex，作用于本地文件夹，并可在对话底部切换。
文档就是 Mac 文件夹里的普通 Markdown 文件，兼容 Git、Obsidian 与 VS Code，无专有格式、无锁定。
可下载的技能文件教会智能体执行与岗位相关的重复任务，如 PRD 转 Jira 史诗、发布公告工具包、QBR 演示生成。
专项更强Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
专项更强Comprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
互动式 AI 学习平台，可将课程资料转化为闪卡和测验，但包含更多视频讲解。
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.
