Quick verdict
TL;DR: Knowt is a free-first study platform that turns notes, lectures, PDFs and videos into flashcards, notes and practice tests, then drills you with Learn mode and spaced repetition. The Basic plan is free with unlimited flashcards and notes, and it imports Quizlet sets in one click — which is exactly why so many students have switched. Ultra, at $12.49/month billed annually ($149.99/year) or $24.99 month-to-month, removes the monthly AI limits and adds unlimited AI summaries, the Kai voice tutor and AP/SAT/ACT/IB mock exams. For most students the free plan is the review: it covers the whole core workflow.
What does Knowt do?
Knowt started as a flashcard app and grew into a full study pipeline. Feed it source material — typed notes, a PDF, a PowerPoint, a video, an image or a live lecture recording — and its AI produces notes, flashcards, summaries and practice questions from it. You then study inside the same app using Flashcards mode, Learn mode, Practice Tests, Match and Spaced Repetition, so the material you generated is drilled the way memory science says it should be: actively, and repeatedly over time.
Two features explain its growth. First, the Quizlet import: existing sets come across, images included — the biggest switching cost in this category, gone. Second, the library: millions of community notes and flashcard sets are browsable free. Teachers get a classroom layer too — assignments, auto-graded assessments, analytics and live Knowt Play games.
Knowt pricing in 2026
| Plan | Price | What you get |
|---|---|---|
| Basic | Free | Unlimited notes and flashcards, all core study modes (Learn, Practice Test, Match, Spaced Repetition), Quizlet import, community library, AI features with monthly limits |
| Ultra (annual) | $12.49/mo, billed $149.99/year | Unlimited AI summaries and teacher tools, unlimited Kai voice-tutor chats, auto-graded assessments, AP/SAT/ACT/IB mock exams, ad-free |
| Ultra (monthly) | $24.99/mo | Same Ultra features, billed monthly |
| School / District | Custom | Rostering, SSO and district licensing |
The free-versus-paid line is not features, it is AI volume: making and studying your own cards is free without practical limits; AI generation is metered monthly on Basic and unlimited on Ultra.
What are Knowt’s strengths?
- The free plan is the real product: unlimited flashcards and notes, every core study mode, and the community library at $0 — no card required.
- One-click Quizlet import: existing sets come across with images, removing the main reason students stay on a pricier rival.
- AI conversion from almost anything: PDFs, videos, slides, images and recorded lectures all become study material in one workflow.
- Study modes that match the science: spaced repetition and Learn mode are built in, not bolted on.
- Teachers are first-class users: assignments, auto-grading, analytics and live games make it deployable in a classroom, not just a dorm room.
What are Knowt’s weaknesses?
- Ultra is pricey for a study app: $24.99 month-to-month is steep for students; the annual plan halves it, but it is still a real commitment.
- AI limits bite on the free plan: heavy users generating summaries and cards from long lectures will hit the monthly AI cap and face the upgrade prompt.
- No public API: integrations are education-focused (SSO, rostering, Google Classroom, Canvas, Drive) — there is no Zapier-style automation story.
- AI output still needs checking: generated cards and summaries from dense material can simplify or misstate details; verify before exam day, not after.
Who is Knowt for?
Knowt is for high-school and college students who study from decks and notes — especially AP students and anyone leaving Quizlet who refuses to rebuild their sets. It is also a strong pick for teachers who want AI-generated assessments and flashcards without giving up classroom controls. If you only need a bare-bones flashcard driller and will never use the AI conversion, simpler free apps exist; Knowt earns its place when the conversion pipeline is the point.
Frequently asked questions
Is Knowt really free?
Yes. The Basic plan is free and includes unlimited flashcard and note creation, all core study modes, Quizlet import and browsing the community library. AI generation is included with monthly limits that reset each month.
How much is Knowt Ultra?
Ultra costs $12.49/month billed annually ($149.99/year) or $24.99/month billed monthly. It adds unlimited AI summaries, unlimited chats with the Kai voice tutor, auto-graded assessments and AP/SAT/ACT/IB mock exams, and removes ads.
Can Knowt import my Quizlet sets?
Yes — Knowt has a direct Quizlet import that brings sets across, images included, which is one of its most popular features.
Does Knowt work for teachers?
Yes. Teachers get assignments, auto-graded assessments, analytics, monitored AI chat activities for students and live Knowt Play games, with school and district plans adding rostering and SSO.
Verdict: is Knowt worth it?
Knowt is the easiest recommendation in the study-app category right now, because the honest answer for most students is: use the free plan and pay nothing. It covers flashcards, notes, practice tests and spaced repetition without a paywall, and the Quizlet import means switching costs an afternoon, not a semester. Pay for Ultra only if you regularly feed it lectures, PDFs and videos and keep hitting the AI cap — and if you do pay, take the annual plan, because the monthly price is hard to defend.