Short answer: in the Quizlet vs Knowt matchup, Knowt wins on price — it does most of what Quizlet paywalled, for free, and imports your existing sets. Quizlet still wins on library size and polish. But both are built around decks of terms, and if your exam is on your lectures, The Study Mill solves a different problem: it builds the whole study session from your own material. Here's the honest breakdown.
Most comparisons of these two are affiliate pages. This one is written by a competitor, which you should factor in — so I've stuck to verifiable pricing, been specific about where the other two are genuinely better, and linked their pricing pages so you can check me.
The 30-second version
| Quizlet | Knowt | The Study Mill | |
|---|---|---|---|
| Free tier | Create sets, flashcards, Match. Learn & Test capped | Notes, flashcards, all study modes, spaced repetition | 2 full classes, every feature included |
| Paid | Plus ~US$35.99/yr (~$2.99/mo) or US$7.99/mo | Ultra US$149.99/yr ($12.49/mo) or US$24.99/mo | Pro A$7.99/mo or A$49/yr |
| Student discount | ❌ | ❌ | ✅ 50% off — A$3.99/mo |
| AI tutor | Q-Chat on Plus | Kai — capped free, unlimited on Ultra | ✅ included free |
| Builds from your lectures | Magic Notes on Plus | ✅ free | ✅ free, core to the product |
| Spaced repetition | ✅ | ✅ | ✅ |
| Shared library | 🏆 Enormous | Large, imports Quizlet | ❌ your material only |
| Audio study | ❌ | ❌ | ✅ Walk & Learn |
Quizlet: still the biggest, still the most paywalled
Quizlet's advantage is scale. If you're studying an introductory course that thousands of students have taken, someone has already made the deck. That library is genuinely hard to compete with, and for standardised material — anatomy terms, language vocab, AP content — it's often the fastest path to studying something.
The problem is what happened to the free tier. Features that were free before 2024 aren't any more:
- Learn and Test modes are capped on free. You get a taste, then an upgrade prompt.
- Practice tests, Magic Notes and Q-Chat all require Plus.
- Ads on the free tier.
Plus runs about US$35.99/year (roughly $2.99/month) or US$7.99/month billed monthly, with a Plus Unlimited tier above that around US$44.99/year. That's not expensive in absolute terms. What stings is that it's a paywall on the basic act of studying, on a product most people started using precisely because it was free — and there's no student discount, which is a strange choice for a company whose entire user base is students.
Quizlet wins if: you want a pre-made deck for a common course and don't mind paying, or your class is already sharing sets on it.
Knowt: the free Quizlet, more or less
Knowt built itself explicitly as the answer to that paywall, and it largely delivers. The free tier covers creating notes and flashcards, all the study modes — learn mode, matching, practice test, spaced repetition — and browsing millions of existing study resources. Crucially, it imports your Quizlet sets, so switching doesn't mean rebuilding.
It also has AI tools that Quizlet charges for: PDF and video summarising, lecture note-taking, PPT summarising.
Where it's less free than the marketing suggests: Kai, the AI tutor, is limited per day on the free plan. Unlimited Kai sits on Ultra at US$12.49/month billed annually (US$149.99/year), or US$24.99 month-to-month — which makes Knowt's paid tier substantially more expensive than Quizlet Plus, an odd position for the budget option. No student discount there either.
Knowt wins if: you have a Quizlet library to migrate and want the study modes without paying. For most people asking "Quizlet vs Knowt," this is the right answer.
Where both of them share a blind spot
Here's the thing neither comparison usually mentions: Quizlet and Knowt are both fundamentally deck apps. The unit is a list of term–definition pairs, and the workflow assumes either you type them or someone else already did.
That's fine for vocabulary and definitions. It's a poor fit for how most university courses actually assess you:
- Your exam is on your lecturer's slides, framing and emphasis — not the generic version of the topic.
- Shared decks are inconsistent quality, and a confidently wrong card is worse than no card.
- Term–definition pairs don't test understanding — the "explain why," "compare these two," "apply this to a case" questions that carry the marks.
- Neither one explains anything when you're stuck at 2am.
If you're doing first-year bio with a standard syllabus, none of that matters much. If you're doing a specialised third-year unit where the exam comes straight from the lecture slides, it matters enormously.
The Study Mill: the deck isn't the unit, your class is
Different starting point. Instead of building or finding a deck, you upload the actual material — lecture recording, slide deck, PDF, your own typed notes — and get a full study session from it in about a minute:
- Concept lessons breaking the material into digestible chunks with plain-language explanations
- Flashcards generated from your content, not someone else's approximation
- Quizzes with AI-graded short answers, so you're producing explanations rather than picking from four options
- An AI tutor that knows your material and can answer "wait, why?"
- Spaced repetition resurfacing what you're about to forget
- Walk & Learn — a two-host audio session that teaches your class back and asks you questions out loud, which nothing else here does
Free covers two full classes with every feature — the gamification is never gated and you're never locked out mid-session. Pro is A$7.99/month or A$49/year, and there's a genuine student discount at A$3.99/month with a school email.
Honest limitation: there's no shared library. If you want someone else's deck for a common course, this is the wrong tool and Quizlet is the right one. It's built on the assumption that you have your own material and your exam is about that.
The Study Mill wins if: you have lectures, slides or notes and want them turned into a study session that tests you.
Which should you actually pick?
- Pre-made deck for a common course: Quizlet. The library is the moat.
- Escaping the Quizlet paywall with sets to migrate: Knowt. Clear answer.
- Exam is on your lecturer's specific material: The Study Mill.
- Hardcore long-term retention and you'll build cards by hand: neither — use Anki.
- Understanding a dense paper rather than memorising it: NotebookLM, then drill it elsewhere.
There's no rule against using two. Plenty of students keep Quizlet for shared vocab decks and run their actual lectures through something that builds the rest.
Try it on your own lecture (free)
The only comparison that settles it is your own material. Upload one lecture and see what comes out — flashcards, a quiz and a tutor, in about a minute, free and no card needed.
Also worth reading: the best free Quizlet alternatives in 2026 for the wider field, and how a lecture PDF becomes flashcards in 60 seconds. 💜
Competitor pricing and features are as published in July 2026 and change often — Quizlet, Knowt and Google all revise their tiers regularly, so check their own pricing pages before deciding.
