Knowt vs Quizlet: Is Knowt Really Free, and Which Is Better?

Knowt and Quizlet are the two biggest names in student flashcards right now, and they are closer than most comparisons admit. Quizlet is the original, with the largest library of ready-made sets and over 60 million users. Knowt is the challenger that grew by giving away what Quizlet charges for. This guide compares Knowt vs Quizlet on price, free limits, AI tools, spaced repetition and moving your sets across, so you can pick the one that fits how you study.

Prices and features below come from Knowt's plans page, Knowt's and Quizlet's US App Store listings and Quizlet's help centre, checked on 24 October 2026. Quizlet's own website blocked our checks, so its web price is the figure we last confirmed in October 2026.

The Short Version

• Knowt gives you more for free. Unlimited Learn rounds, practice tests, Match and a spaced repetition mode cost nothing. Ultra is $24.99 a month or $149.99 a year and mainly adds ad-free study and heavier AI.
• Quizlet has the bigger library and the more polished app. Its free plan covers flashcards and community sets, with ads. Full use of Learn and Practice Tests needs Quizlet Plus: $44.99 a year in the iOS app, from $35.99 a year on the web.
• Switching is easy in one direction. Knowt's Chrome extension imports Quizlet sets in two clicks.
• Neither is a transparent spaced repetition app. Both now list a spaced repetition feature, but neither shows you how it schedules cards.
• Want your own notes turned into scheduled cards on iPhone? That's a third option, covered near the end.

Is Knowt Really Free?

Mostly, yes. Knowt's free Basic plan includes unlimited flashcards and storage, Learn mode with unlimited rounds, practice tests, a matching game and a Spaced Repetition mode. Knowt's homepage says it doesn't lock these study features behind a paywall, and that holds up against its plans page.

What you pay for is the AI layer and the ads. Ultra lists an ad-free experience, AI summaries of PDFs, videos, images and PowerPoint files, lecture recording summaries, an AI podcast generator, an AI voice tutor and full AP, SAT and ACT prep. The free plan does generate flashcards from your notes with AI, but Knowt doesn't publish how many generations you get each month.

So "free" is accurate for flashcards and study modes. It is less accurate if you plan to lean on Knowt's AI every day during exam season.

Knowt vs Quizlet at a Glance

Checked against Knowt's plans page and homepage, both App Store listings and Quizlet's help centre on 24 October 2026. Quizlet's free caps are described rather than counted because Quizlet has changed them several times and we couldn't confirm the current numbers on its own site.

Knowt vs Quizlet Pricing: What You Actually Pay

Knowt has two student plans. Basic is free. Ultra is $24.99 a month, or $149.99 a year billed upfront, which Knowt shows as $12.99 a month and pairs with a 3-day free trial. The iOS app lists Student Ultra at several prices at once (weekly $9.99, monthly $12.99 to $24.99, annual $59.99 to $149.99), so check the price on screen before you tap subscribe.

Quizlet sells Quizlet Plus. In the iOS app it is $9.99 a month or $44.99 a year, and the App Store also lists Quizlet Plus Unlimited and Quizlet Go at $44.99. On Quizlet's website, Plus has been priced from $35.99 a year; we couldn't recheck that figure on 24 October because quizlet.com blocked automated visits, so treat it as the October 2026 price. Buying on the web is cheaper than buying in the app.

Over a year, Quizlet Plus costs less than a third of Knowt Ultra. The comparison flips when you look at what each free plan covers, because many students on Knowt never need Ultra at all.

Knowt vs Quizlet Free Plans: Where the Limits Bite

Quizlet's free plan still does the basics: make sets, flip flashcards, play Match and study any of the community sets. As of October 2026, the limits fall on the modes that do the most work. Free accounts get a limited number of Learn and Practice Test rounds before Quizlet asks you to upgrade. Student papers and pricing blogs quote different numbers for those caps, and Quizlet has adjusted them more than once, so the exact allowance is something to check inside the app.

Knowt's free plan doesn't ration study modes. Learn has unlimited rounds, and practice tests, Match and spaced repetition are all included. The trade-offs are ads and an unpublished cap on AI.

If your study routine is mostly Learn mode and practice tests, Knowt's free plan covers what Quizlet charges for. If you mostly flip through ready-made sets, Quizlet's free plan is still usable.

Knowt vs Quizlet Spaced Repetition: Does Either Schedule Reviews?

Spaced repetition means each card gets its own review date, and the gap grows every time you remember it. It is the method that keeps material for months rather than days, because it times reviews against the forgetting curve.

Knowt has a free Spaced Repetition mode alongside Learn, Match and practice tests. Its App Store listing calls it a "scientifically proven algorithm", but Knowt doesn't publish how it works, and there are no settings to change.

Quizlet has historically leaned on Learn mode, which adapts within a session by bringing back the cards you miss. Its current App Store listing now also names a Spaced Repetition feature that "resurfaces" what you need to review. The listing doesn't say which plan includes it, and third-party reviews describe Quizlet's multi-day scheduling as a Plus feature.

Neither app is a dedicated spaced repetition system in the way Anki is, with per-card intervals you can inspect and an optional FSRS scheduler. Our Quizlet vs Anki comparison covers that difference in detail. For cramming before a test, both are fine. For a cumulative final or a language you're building over a year, the scheduler matters more than the study modes.

Knowt vs Quizlet AI Tools: Notes, PDFs and Lectures to Cards

Both apps now pitch AI as the fast way in.

Knowt turns pasted notes and uploaded files into flashcards and practice tests, and the free plan includes AI flashcard generation from notes. The heavier tools, such as summarising PDFs, videos and PowerPoints, recording a lecture, generating a podcast or quizzing you by voice, are Ultra features.

Quizlet lets you type, paste or upload notes and builds a study set from them. It can also turn a recorded or uploaded lecture into study guides and flashcards, turn your sets into podcast-style audio, and answer homework questions through Ask Quizlet. Quizlet's listing doesn't say how much of this is free, so expect some of it to sit behind Plus.

In practice the two are close. The quality of the cards depends more on how clean your source notes are than on which app writes them, so check the first few cards either app generates before you study from them.

Our ranking of the best AI flashcard apps compares both with RemNote, Gizmo, Sticky and others on inputs and free AI limits. If you'd rather draft cards in a general AI tool, our guide to making flashcards with ChatGPT shows how to move them into an app that schedules reviews.

Moving From Quizlet to Knowt: Importing Your Sets

This is where Knowt has a clear edge. Its Chrome extension imports a Quizlet set in two clicks, and Knowt says images and formatting come across with it. The extension also pulls in content from a few other sites, including Kahoot and YouTube.

The import happens in Chrome on a computer, not in the phone app. Do it once on a laptop and the set syncs to Knowt's iPhone and Android apps.

Going the other way is harder. Quizlet's help centre says you can export your own sets as text from the website, but not images, and not sets you copied from someone else. If you're leaving Quizlet, Knowt is the easiest landing spot. For a wider list of destinations, see our guide to free Quizlet alternatives.

Knowt vs Quizlet Libraries and Apps

Quizlet's library is still the biggest reason to stay. Search a course code, a textbook chapter or an exam and there is almost always a set for it, though less-used sets often carry typos and wrong answers. Its iPhone app has 4.8 stars from about 1.1 million US ratings, and it runs on iPhone, iPad, Android and the web.

Knowt advertises 5 million resources to browse, mostly made by students: flashcard sets, class notes and study guides, plus free AP study guides from Knowt itself. That is a smaller pool than Quizlet's, but it covers the common high school and college courses. Knowt's iPhone app has 4.7 stars from about 11,000 ratings and runs on iPhone, iPad, Android and the web, with the Chrome extension on top.

Both apps sync your sets between phone and website, so either works if you make cards on a laptop and review on your phone.

Who Should Use Knowt

• You want Learn mode and practice tests without paying. Knowt's free plan covers both without round limits.
• You're leaving Quizlet. The Chrome extension moves your sets across in two clicks.
• You study from documents and lectures. Knowt's AI turns notes and files into cards, with lecture and video summaries on Ultra.
• You switch between devices. Web, iPhone, iPad, Android and a Chrome extension, all in sync.

Who Should Use Quizlet

• You want ready-made sets for your course. No other app has a library as large.
• Your class already uses it. Shared sets, Study With Friends and teacher tools are built around Quizlet.
• You want the most polished app. 4.8 stars from over a million ratings is hard to argue with.
• You'd pay for one plan. Quizlet Plus at $35.99 to $44.99 a year costs far less than Knowt Ultra.

A Third Option: Sticky, for iPhone Users Who Want Scheduling

Knowt and Quizlet are both built around sets: find one, import one or generate one, then pick a study mode. If you study on an iPhone or iPad and want every card on a real review schedule, Sticky takes a narrower route. Photograph a page of notes, paste text or dictate, and AI turns it into question-and-answer cards. Every card is then scheduled with SM-2, and you can see when it comes back, as explained in how Sticky schedules reviews.

Sticky also checks typed answers, runs a multiple-choice quiz mode, reads cards aloud in the deck's language and renders maths and chemistry notation properly.

To be straight about the limits: Sticky's free plan is trial-sized, with 3 decks of up to 30 cards, 5 AI generations a month and 1 camera deck a month. Sticky Pro removes those limits for $5.99 a month or $39.99 a year. It runs on iPhone and iPad only, has no shared deck library, and does not import Quizlet sets, so it suits new material rather than an existing Quizlet collection. If you're comparing it head to head, see Sticky vs Quizlet or our roundup of the best flashcard apps for iPhone.

Knowt vs Quizlet: The Verdict

Knowt is the better free app and Quizlet is the better library. If you want Learn mode, practice tests and spaced repetition without paying, or you're already frustrated by Quizlet's caps, Knowt gives you more and imports your sets on the way in. If you rely on finding a ready-made set for every class and you're willing to pay for one plan, Quizlet Plus is the cheaper subscription and the more polished app. If you're choosing for a whole degree rather than one class, our guide to the best flashcard apps for college students compares both with Anki, RemNote and Sticky.

Whichever you pick, the app matters less than the habit: short daily sessions of active recall on cards you'd be happy to be tested on (our guide to making effective flashcards covers that). If you want somewhere concrete to start, try a ready-made deck like AP Biology flashcards or Spanish vocabulary, or browse more study guides and learning science.