
Biblioteca massiva de anotações acadêmicas compartilhadas combinada com ferramentas de estudo de IA, mas com menos foco na criação de flashcards.
Knowt registra 4.183.953 visitas mensais com crescimento de +5,4% mês a mês e preços Grátis. Vidnotes registra 0 visitas mensais com crescimento de — e preços Grátis.
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.

Vidnotes (published in the Chrome Web Store as Columbia Notetaker) is a free Chrome extension that generates AI-written notes from Columbia recitation recordings. When you play a recitation recording in the browser, the extension turns it into structured, timestamped notes so students can review the highlights instead of re-watching an entire session. It is intended for educational use and keeps the notes tied to the source material.
| Dimensão / Métrica | ![]() | |
|---|---|---|
| Domínio oficial | knowt.com | chromewebstore.google.com |
| Modelo de preços | Grátis | Grátis |
| Visitas mensais | 4,18 mi (4.183.953) | 0 (0) |
| Variação de tráfego mensal |
| +214,76 mil (+5,4%) |
| 0 (—) |
| Mercado principal e participação | 🇺🇸 Estados Unidos (69,6%) | 🌐 Global (—) |
|---|
| Visitas diretas / mês | 2,74 mi | 0 |
|---|
| Avaliação dos usuários | 4,3 | 4 |
|---|
| Plataformas suportadas | Site | Extensão de navegador |
|---|
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.

Vidnotes (published in the Chrome Web Store as Columbia Notetaker) is a free Chrome extension that generates AI-written notes from Columbia recitation recordings. When you play a recitation recording in the browser, the extension turns it into structured, timestamped notes so students can review the highlights instead of re-watching an entire session. It is intended for educational use and keeps the notes tied to the source material.
Play a Columbia recitation recording and the extension drafts AI notes from the spoken content, so you do not have to transcribe it yourself.
Notes are tied to timestamps in the recording, making it easy to jump back to the exact moment a point was made.
Notes condense a full session into the key points, so reviewing before an exam takes minutes rather than hours.
Installs as a lightweight Chrome extension that the developer states does not collect or sell user data.

Biblioteca massiva de anotações acadêmicas compartilhadas combinada com ferramentas de estudo de IA, mas com menos foco na criação de flashcards.
Aplicativo de estudos gamificado com IA que converte anotações em flashcards e questionários, mas com uma interface mais lúdica.

Transcrição ao vivo e notas com IA sem bots na chamada
EspecializadoComprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.

Plataforma interativa de aprendizado por IA que transforma materiais de cursos em flashcards e questionários, mas com mais explicações em vídeo.
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.

Assistente de estudos personalizado com IA que cria flashcards e mapas mentais a partir de gravações de aulas, mas com uma comunidade de usuários menor.

Assistente de aprendizado por IA que converte aulas e documentos em guias de estudo e flashcards, mas menos amigável no plano gratuito.
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.
Plataforma de estudos com IA que transforma anotações e vídeos em testes e resumos, mas com menos recursos colaborativos.

AI study platform converting course materials into practice questions and flashcards, but with a simpler feature set.
Biblioteca massiva de anotações acadêmicas compartilhadas combinada com ferramentas de estudo de IA, mas com menos foco na criação de flashcards.
Aplicativo de estudos gamificado com IA que converte anotações em flashcards e questionários, mas com uma interface mais lúdica.
Transcrição ao vivo e notas com IA sem bots na chamada
EspecializadoComprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
Plataforma interativa de aprendizado por IA que transforma materiais de cursos em flashcards e questionários, mas com mais explicações em vídeo.
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.
Assistente de estudos personalizado com IA que cria flashcards e mapas mentais a partir de gravações de aulas, mas com uma comunidade de usuários menor.
Assistente de aprendizado por IA que converte aulas e documentos em guias de estudo e flashcards, mas menos amigável no plano gratuito.
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.
Plataforma de estudos com IA que transforma anotações e vídeos em testes e resumos, mas com menos recursos colaborativos.
AI study platform converting course materials into practice questions and flashcards, but with a simpler feature set.