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。Rivet.dev 记录了 21,359 月访问量，增长率为 -44.3%，定价为免费增值，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.
在你自己的基础设施上运行和扩展持久化 AI Agent
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.
在你自己的基础设施上运行和扩展持久化 AI Agent
每个 Actor 都拥有 SQLite 数据库与文件系统，Agent 的记忆与进度可在重启与空闲后保留，无需额外数据库。
在你自己的基础设施上运行不受信任或 AI 生成的代码，并可细粒度控制网络访问、文件系统权限与资源上限。
节点故障时其 Actor 会带状态迁移到其他节点，多步骤任务在崩溃后自动重放，无需自建检查点机制。
可通过 HTTP 直接寻址 Actor 或保持实时 WebSocket 连接，并用 React SDK 让组件订阅 Actor 状态实现实时更新。
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.
免费 / 开源Mastra is an open-source TypeScript framework for building, deploying, and observing AI agents and workflows. It gives JavaScript developers typed agents, durable workflows, memory, MCP tool support, and built-in observability so prototypes can scale into production.
免费 / 开源Mastra is an open-source TypeScript framework for building, deploying, and observing AI agents and workflows. It gives JavaScript developers typed agents, durable workflows, memory, MCP tool support, and built-in observability so prototypes can scale into production.
AI study platform converting course materials into practice questions and flashcards, but with a simpler feature set.
专项更强Specialized AI quiz and flashcard generator from documents and videos, but lacks robust note-taking features.
