Comparisons

Knowt vs Quizlet: which one should you use?

Pick Knowt if you want a free place for flashcards, notes and practice tests, or you want to import your old Quizlet sets. Pick Quizlet if you want its huge library of sets and familiar study modes, and a capped free plan is fine. If your material is your own lecture files, StudyPDF builds the cards from them and cites the page.

Knowt and Quizlet start from the same idea: flashcards plus practice tests. Knowt grew up as a free alternative. Its Basic plan is free, its site says flashcards and the learn mode are not locked behind a paywall, and it can import your existing Quizlet sets in one click.

Quizlet has the bigger name and a very large library of sets made by other students, with study modes such as Learn, Test and Match. On its free plan some tools are capped, and Plus is a subscription. Both now use AI to turn notes or files into study material.

Paid prices differ a lot, and both sites change them, so compare the plans on each site before you subscribe. As of October 2026, Knowt Ultra is $24.99 a month or $149.99 billed yearly.

Side by side

Tool	Best for	Free tier	Price (October 2026)	Platforms
Knowt	Free flashcards, notes and practice tests; moving off Quizlet	Basic plan is free; flashcards and Learn mode are not paywalled	Ultra: $24.99 a month or $149.99 a year	Web, iOS, Android
Quizlet	Its huge library of shared sets and familiar study modes	Free plan; some tools, such as Learn and tests, are capped	Paid Plus plans, yearly or monthly (check price)	Web, iOS, Android
StudyPDFThat's us	Studying your own course files with cited answers	Free account, no credit card, about 4 materials a week	Pro and Ultra plans, see the pricing page	Web, iPhone, iPad, Android

Prices as of October 2026. Check the vendor's site for the current price.

Tool by tool

Knowt

Best for: Free flashcards, notes and practice tests; moving off Quizlet

Knowt is a free-to-start study app with flashcards, notes, practice tests and AI that turns PDFs, videos and lectures into study material. Kai, its AI assistant, can explain why a practice answer was wrong.

Strengths

Free Basic plan with flashcards and Learn mode
One-click import of your existing Quizlet sets
A public library of community notes and flashcards
Kai explains why a practice answer was wrong

Limits

AI summaries and tests do not point back to the page behind each answer
Extra AI tools, such as PDF, video and PowerPoint summaries, need the paid Ultra plan

Official site

Quizlet

Best for: Its huge library of shared sets and familiar study modes

Quizlet is the best-known flashcard app. It has a huge library of sets made by other students, study modes like Learn, Test and Match, and AI tools such as Magic Notes.

Strengths

Millions of shared sets you can start from today
Polished study modes, including Learn, Test and Match
Magic Notes turns notes or a file into cards quickly

Limits

Some tools, such as Learn and practice tests, are capped on the free plan
Shared sets can have mistakes or miss what your course covers
Made for quick sessions more than for months of spaced review

Official site

StudyPDF

That's us

Best for: Studying your own course files with cited answers

StudyPDF makes flashcards, quizzes, practice exams and study guides from the files you upload. Bo, the tutor, answers from your material and cites the page.

Strengths

Builds materials from your own slides, PDFs, scans and notes
Exports flashcards to Anki (.apkg) on Pro and up; PDF export on every plan
Answers and cards cite the page they came from

Limits

Weekly caps on every plan
Not a library of ready-made decks from other students

Who should pick which

Knowt: Pick Knowt if you want a free-first app, you already have Quizlet sets to import, or you like browsing community notes next to your flashcards.
Quizlet: Pick Quizlet if you want its library of sets, the Learn, Test and Match modes your class already uses, or Magic Notes, and a capped free plan is fine.
StudyPDF: Pick StudyPDF if you study from your own slides and PDFs, want the page cited, and want cards, quizzes and exams made from the course files.

Questions and answers

Is Knowt better than Quizlet?

It depends on what you need. Knowt is better if you want a free-to-start app and a one-click import of your Quizlet sets. Quizlet is better if you want its very large library of shared sets and study modes like Learn, Test and Match. Neither points to the page behind each answer.

Is Knowt really free?

Knowt's Basic plan is free, and its site says flashcards and the learn mode are not locked behind a paywall. The paid plan is Ultra, which adds ad-free studying and extra AI tools such as summaries of PDFs, videos and PowerPoints.

Can I move my Quizlet sets to Knowt?

Yes. Knowt offers a one-click import of existing Quizlet sets. Check that your terms, images and formatting came across before you delete anything on Quizlet.

How much do Knowt and Quizlet cost?

As of October 2026, Knowt Basic is free and Ultra is $24.99 a month or $149.99 billed yearly. Quizlet has a free plan with some tools capped, and paid Plus plans billed monthly or yearly. Prices change and vary by country and app store, so confirm on both sites.

What if I study from my own course files?

StudyPDF builds flashcards, quizzes and practice exams from the PDFs and slides you upload, and cites the page. It does not import Quizlet sets or offer a library of other students' decks. The free plan needs an account but no card.