Not every idea should become the same flashcard
Upload a lecture, a chapter, your notes or a PDF. Kard Kulture reads what is in it and builds a deck shaped around the ideas — not a pile of identical cards.
Kard Kulture is in private testing and is not on the App Store yet. Early access is a link to somewhere else; this site collects nothing.
Start from what you already have
A lecture PDF, slides exported as a PDF, photographs of a printed page or a whiteboard, text you paste, or an Anki package you already own. Kard Kulture asks two questions about how you want to study it, and then reads the material.
How should I study this?
How much should it cover?
The allowance is on the screen before you spend it, not after. Writing your own Kards is always free and never counted.
Not a number you pick and not a fixed twenty. Kard Kulture reads the document and writes as many Kards as there are ideas in it, so a dense chapter yields more than a title slide.
Import an .apkg and study it here, with the same scheduling as everything else. Kard Kulture is not a replacement for the deck you already trust; it is somewhere to bring it.
Adaptive
Two things that are constantly confused are not one fact to be recalled. A rule with exceptions is not a definition. Where the material has a shape, Kard Kulture writes the Kard in it — which is a minority of Kards. Most of what you study stays Classic, and that is the right answer rather than a shortfall.
Split Compare
— What each one is the spread of
Standard deviation
Standard error
Spread of
the observed values
the estimate across samples
With a larger sample
no systematic shrink
usually shrinks
Answers
how variable are the values?
how precise is the estimate?
Decision Path
— What happens to the steady-state level
It depends on whether the enzymes clearing the drug still have spare capacity.
Seven structures ship. Each one exists because some kind of idea is badly served by a plain question and answer.
The comparison above is drawn here in HTML; this is the same Kard on a phone, in a real session. Question, answer, and the two ratings — nothing else on the screen.
Any Adaptive Kard can be read as a Classic one. A structure is a way of showing a Kard, never a different Kard — so you can always set the layout aside and just see the question and the answer.
Buzzwords
Some material is not understanding, it is recognition: a phrase you have to meet and place in a second. Ask for Buzzwords and the deck is written as cues — the description on the front, the thing it should bring to mind on the back, big enough to take in at a glance.
Given by mouth, largely cleared by the liver before it ever reaches the circulation
First-pass metabolism
Pharmacology Patterns
A third factor that influences both the exposure and the outcome, making them look connected
Confounder
Statistics Without the Fog
A condition a structure guarantees is true before and after every operation on it
Invariant
Computer Science Foundations
Two membranes, its own circular genome, and where most ATP is produced
Mitochondrion
Cell Biology Foundations
Wants exceed what is available, so every use of a resource is chosen over another
Scarcity
Markets and Prices
The barrier a reaction must clear before reactants can become products
Activation energy
Chemistry Patterns
Reviewing an item just as it is starting to fade, at gaps that grow after each success
Spaced repetition
Memory and Learning
Found free in the cytoplasm and bound to a membrane, and builds every protein the cell makes
Ribosome
Cell Biology Foundations
Every one of those is a Kard in a deck that ships with the app, across seven subjects. Recognition is not a medical-school problem: an invariant in computer science and scarcity in economics are the same kind of cue.
Tutor
One action on the answer side: I don’t understand this. Tutor breaks the idea down using the material behind your Kard — nothing to choose from, nothing to type.
Tutor
Vancomycin clearance
Vancomycin leaves the body through the kidney, so how fast a patient clears it decides how much they can be given.
Toxicity risk rises unless the dose or the interval changes.
What matters
So for this Kard, the thing to remember is that the maintenance dose follows creatinine clearance, not weight.
Your material gives the rule but does not say what to do when clearance changes mid-course.
Renal Pharmacology — Lecture 7 · pp. 14, 22
A mechanism in the order it actually happens. Two ideas that are easy to confuse, set side by side. Or just the one thing that matters. Something you can read and keep — not a conversation to scroll.
When a Kard came from a document, the explanation ends at the page it came from. A written explanation can still get something wrong, which is exactly why that page is there: check it rather than trust it. And it tells you plainly when your material does not answer the question — the one thing a general-purpose assistant never will.
Ask why, see an example, or have it quiz you when you want another angle. Then back to the Kard you were on.
Grounding
A Kard generated from a document carries the page and the passage behind it, so you can check it instead of trusting it. Open the citation and the excerpt it was written from is right there.
Kards you write yourself, and Kards imported from Anki, have no document behind them — and say so rather than pretending.
— What sets the dose after the first one
Vancomycin is cleared almost entirely by glomerular filtration, so the maintenance dose is set by creatinine clearance rather than by weight alone.
Scheduling
Every time you answer a Kard you say whether it came back easily. Kard Kulture learns how long each idea stays with you and brings it back just before it would have gone — so the hundred Kards you know well stay out of your way, and the nine you keep losing do not.
— Its shape, and what a review does to it
Steep at first, then flattening: most of what will be lost goes soon after learning, and what survives the first days decays slowly. Each successful review lifts the curve and makes the next decline shallower — which is why review intervals can grow.
— Why the same hours spread out beat the same hours in one sitting
Reviews separated by time produce more durable memory than the same number of reviews massed together. On the usual account, each return after a gap has to rebuild the retrieval, and that effort is what makes the trace stronger.
Both of those are Kards in Memory and Learning, one of the decks that ships with the app. They are also the reason it schedules the way it does.
The scheduler is FSRS, the modern spaced-repetition algorithm. You never have to think about it: there are two buttons, and they mean what they say.
Test me
Reviewing is how you hold on to what you have learned. It is not a good test of whether you could apply it, because by the fourth time you have seen a Kard you are partly remembering the card.
Test me builds questions that put the idea somewhere you have not seen it — a case, a consequence, a comparison — from the same material your Kards came from. You find out what you can use, which is a different answer from what you can recall.
It is a check on your understanding, not a prediction of your exam. Nothing here estimates a grade.
Deck Health and Search
Two Kards that ask the same thing in different words. A Kard that does not say where it came from. Seven pages of the document that no Kard covers. Deck Health names each problem and takes you straight to it — no score to interpret, and several of them fixable where you stand.
Search runs across your decks, the fronts and backs of your Kards, and the passages kept behind them. It runs on your device, it costs nothing, and it works with no connection.
The shelf
Nine decks ship with the app, written by us — eighteen to twenty-two Kards each, through the same quality checks an import goes through. Add one and study it in the next minute.
Physiology
One beat, from the impulse that starts it to the pressure it produces — the cycle, the wiring, the valves, and the rules that set the output.
Psychology
How a memory is made, why it fades, and which ways of studying the evidence favours — useful whatever you are studying.
Pharmacology
The handful of ideas that explain most of what a drug does — binding, clearance, and the margin between working and harming.
Biology
What the parts of a cell actually do, how information gets from gene to protein, and why the membrane decides what gets in.
Economics
Why prices land where they do, what a shift does to them, and the costs a price leaves out — the reasoning behind the diagrams.
Statistics
What a p-value, an interval and a risk reduction actually entitle you to say — and the claims they never support.
Chemistry
Acids, electrons, forces between molecules and equilibrium — the few tendencies that decide what a reaction does.
History
Turning points and the conditions behind them — including which parts historians still argue about.
Computer Science
Structures, costs and invariants — why one data structure is fast where another is slow, in no particular language.
No document sits behind them, so there is no citation to open and no Tutor explanation to ask for — rather than offer either and then refuse. Everything else behaves as it does for a deck you made yourself. Nothing is rated or featured: the list is nine, and it does not grow.
iPhone, iPad and the web
The same product on all three, composed for the screen it is on — a phone for between lectures, an iPad that holds a deck beside a Kard, a browser window with your library next to your work.
Once your Kards are on your device, studying does not depend on the internet. Making new ones does — generating Kards and asking the Tutor need a connection.
An account is optional. Without one your library lives on your device and nowhere else; with one it follows you to your next device.
No advertising, no third-party analytics in the app, and no trackers on this website. A document you import is deleted from our service ten minutes after upload, on a clock that is never extended.
Plans
The expensive part of Kard Kulture is reading your documents and building Kards from them, so that is the part that is counted. Studying, writing your own Kards and bringing in Anki decks are unlimited on both plans.
Before you ask
No. It reads the material for distinct ideas and writes as many Kards as it finds, in the shape each idea calls for. A page of bullet points does not become a page of Kards, and a dense chapter yields more than a title slide.
The Tutor says so. It will tell you plainly that your material gives the rule and not the reason, rather than filling the gap from somewhere else — which is the whole difference between a tutor that read your lecture and one that did not.
Yes, and without limit on either plan. Import an .apkg and the deck arrives with its cards, ready to study with the same scheduling as everything else. Scheduling history does not come across.
The document is sent to our service and on to an AI provider, because reading it is the only way to make Kards from it. It is deleted automatically ten minutes after upload. A copy stays on your own device so a citation can open the page it came from, and that copy is never uploaded. The Privacy Policy lists every moment anything is sent, and what is sent.
Two imports are included free, along with every Kard style, the nine decks, unlimited Kards you write yourself, unlimited study and your Anki decks. An import that fails, or that your material cannot support, does not use one up.