Knowt: AI Flashcards & Notes
Knowt Inc. · Productivity · Leaning
Knowt is a free AI study app that turns notes, PDFs, and videos into flashcards and practice tests. It's a popular Quizlet alternative with unlimited study modes.
About Knowt: AI Flashcards & Notes
What Is Knowt
Knowt is a study platform built around flashcards, notes, and AI-generated practice material. It started as a free replacement for Quizlet after that service limited its free tools, and it now serves millions of students across high school, college, and test prep.
The core problem it solves is study material that takes too long to build. Instead of typing every card by hand, you upload a PDF, a slide deck, or a lecture recording and let Knowt draft the flashcards and tests for you. You can also pull in existing Quizlet sets in a few clicks, so switching over doesn't mean starting from scratch.
The main limits show up in the AI layer. Free accounts get a monthly cap on AI features like summarizers and the Kai tutor, and once you hit it, Knowt asks you to upgrade to Ultra. Heavy AI users will notice that ceiling fastest.
Getting Started
- Create a free account on the Knowt website or download the app for iOS or Android.
- Import an existing Quizlet set, or start a new one from your own notes.
- Upload a PDF, video, or slide deck and let the AI generate flashcards, a summary, and a practice test.
- Pick a study mode such as Learn, Spaced Repetition, Match, or Practice Test, then track your progress on the set page.
Product Information
A quick look at Knowt: AI Flashcards & Notes's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- High school and college students
- AP, SAT, and ACT test takers
- Teachers and tutors
Tasks
- Turning lecture slides into flashcards
- Building a practice test from notes
- Replacing a paid flashcard subscription
Scenarios
- Studying the night before a midterm
- Weekly review during a term
- Prep for a standardized exam over months
Key features
AI Flashcards From Your Own Material
Knowt reads a PDF, image, PowerPoint, or lecture video and drafts flashcards and definitions from it. You edit or delete anything the AI gets wrong before you start studying. This is the feature that saves the most time, since hand-building a large set can take hours.
Multiple Free Study Modes
Learn mode, Spaced Repetition, Match, and Practice Test each train recall a different way, and all of them run unlimited on the free plan. Spaced Repetition spreads cards across days so you revisit weak terms right before you'd forget them, which makes Knowt a real spaced repetition app rather than a plain card viewer. Practice Test mode turns a set into a graded quiz you can retake.
Call Kai Voice Tutor
Kai quizzes you out loud on a set's terms and definitions and tracks how many you get right, wrong, or skip. Each session shows up in your call history with the time spent and an accuracy count. It works on all your files, and the AI time it uses counts against the free monthly cap.
AI Summarizer and AI Notetaking
You can upload a PDF, video, images, or slides and get back a summary, or use AI notetaking directly in Knowt to turn notes into flashcards or a test later. An AI podcast generator and a lecture recording summarizer sit in the same paid tier. Notes and cards live together, so a study session flows from reading to recall.
Quizlet Import
Knowt pulls in existing Quizlet sets so you keep the work you've already done. Importing takes seconds, and the cards keep working with Knowt's free study modes. For students leaving a paid plan elsewhere, this is the step that makes switching painless.
Exam Hubs and Progress Tracking
Dedicated hubs for AP, SAT, and ACT collect curated study material in one place. Each set page shows a study-progress table across Learn, Practice Test, Matching, Spaced Repetition, and Call Kai. That view makes it easy to see which topics still need work before an exam.
Pros and cons
Pros
- Free plan includes unlimited learn mode, match, and spaced repetition, which most rivals lock behind a subscription.
- AI generation works from PDFs, slides, images, and lecture videos, so you build large sets fast.
- Quizlet import brings over existing cards in a few clicks.
- Available on web, iOS, and Android with the same account.
- Exam hubs and progress tracking support long test-prep plans.
Cons
- The free tier caps AI features by the month, so heavy summarizer or Kai use forces an upgrade to Ultra.
- There's no public API, which rules out custom integrations or bulk automation.
- Ultra at $24.99/month is costly for casual users who only need basic cards.
- Teacher and administrator features are separated from student accounts, adding steps for classroom use.
Frequently asked questions
Knowt is a study app for creating and reviewing flashcards, notes, and practice tests, with AI tools that build cards from your own files. Students use it for coursework, exam prep, and daily review.
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