IntroducingCram Sense

It knows what you don't understand. And why.

Cram Sense is the learning model inside Cram. It finds exactly what you're struggling with — down to the step and the rule behind it — then changes how Cram teaches you, what you practice, and when things come back.

InsideHomeFlashcardsDaily MixPracticeAsk Cram· web and iPhone
MonMeet Maya: algebra quiz on Friday. Follow her week down the page.
The problem with studying

Most study apps hand everyone the same deck.

Same cards, same order, whether you've known it for weeks or missed it twice yesterday. Flip the switch and see the same night, planned by Cram Sense.

  1. 1Combining like termsChapter 3.18 min
  2. 2Order of operationsChapter 3.28 min
  3. 3Distributing a negativeChapter 3.38 min
  4. 4FactoringChapter 3.48 min
  5. 5Two-step equationsChapter 3.58 min
  6. 6Equations with fractionsChapter 3.68 min
Tonight, everything48 minutes

Every topic, every time, in the book's order.

That's how most study apps work: the same deck, the same order, for everyone. You spend your night on what you already know.

An example night. Your plan is built from your own answers and your test date.

Meet Cram Sense

The part of Cram that pays attention.

Every card, practice question and homework answer teaches Cram Sense something about you. It isn't a chatbot, and it never guesses what “kind of learner” you are — it goes by what you actually do, then changes what Cram does next.

How it works

Notice. Understand. Adapt. Remember.

Four things Cram Sense does with every answer you give — then round again with the next one.

Cram Senseevery answer, round again
01 · Notice

Every answer, read closely.

Not just right or wrong — how you got there. Working it out counts for more than a lucky pick. A hint counts for less. Saying you're unsure moves a topic up your list, but never counts against you.

✓Worked it out, step by stepcounts a lot
✓Picked from four choicescounts some
✓Got there with a hintcounts less
?Tapped “I'm not sure”moves it up — never a miss
✗Dropped the negative sign — againpattern spotted
See it in Maya's week ↓
01
Mon–WedMaya keeps getting −3(x − 4) wrong

It finds what you don't understand.

“Wrong” isn't a diagnosis. Cram Sense works out which step broke, the rule behind it, whether it's a pattern or a one-off slip, and what it's built on.

Answer Maya's question. See what Cram Sense sees.

The science · Error analysisBrown & Burton, 1978
Algebra · Unit 3 · PracticeDistributing a negative−3(x − 4) =Pick an answer — try a wrong one to see what Cram Sense makes of it.
Every option here is a mistake real students make.
Cram Sense, on this answer

Not just “wrong.” Cram Sense works out which step broke, why, and what to do about it.

An example from Maya's week. In the app, Cram Sense only names a mistake when it's sure — otherwise it waits.

Root causes

It finds the problem underneath the problem.

When you miss something, Cram Sense checks what it's built on. A skill keeps its identity across units and classes, so a gap from Unit 1 is still on file in Unit 4.

If the real problem is three units back, that's where it starts you — five minutes on the groundwork instead of an hour of frustration on the thing on top. And before a new unit, it warns you what's likely to trip you up.

The science · Prior knowledgeAusubel, 1968
Tracing the miss
Solving quadraticsUnit 4 · todayMissed 2 of 3
FactoringUnit 3Shaky — builds on ↓
Distributing a negativeUnit 3Same sign slip
Integer sign rulesUnit 1 · 3 weeks agoThe real gap
Heads up: this unit leans on sign rules, which gave you trouble in Unit 1. 5 minutes on it first?
02
Tue–WedHer practice, help and plan all change

It adapts to you.

Once it knows what's going on, everything that touches that topic changes — how hard the questions are, how much Cram explains, when cards come back and what comes first tonight.

How Maya's doing onDistributing a negative
PracticeHow hard the next question is−2(x + 3)One step at a time, with a warm-up first
Ask CramHow much it explainsStep by step, starting from your own mistakeExtra detail where you've struggled
FlashcardsWhen the card comes backIn 10 minutesAgain until you get it right
Tonight's planWhere it sits on the list#1 · 6 minMissed 3 of the last 4 — goes first

One topic changes, and everything that touches it changes with it — without you setting anything.

Adapts toYour memoryOnce it has enough of your answers, it learns how fast you forget — and spaces your cards to match.
Adapts toYour scheduleTonight's minutes fit when and how long you actually study, not an ideal you'd never keep.
Adapts toYour energyWhen answers start slipping late in a session, practice winds down instead of piling on.
Adapts toYour teacherIf your teacher flags a topic to focus on, it counts for more in your plan.
Retrieval practice

It quizzes you before it re-teaches you.

Pulling an answer out of your memory makes it stick far better than reading it again. So Cram Sense checks first, with a couple of quick questions.

Get them right and you skip the lesson — it's spaced out instead. Miss one and Cram teaches just that step, then checks again. No re-reading pages you already know.

The science · Retrieval practiceRoediger & Karpicke, 2006
Wednesday · Factoring
Check firstTwo quick questions, from memory
Got bothSkip the lesson. It's spaced out instead.Missed oneTeach just that step — then check again.

No re-reading pages you already know. Pulling it from memory is the studying.

Desirable difficulty

Every question, pitched at your edge.

Questions that are too easy teach nothing. Too hard, and you learn to give up. You learn most right at the edge of what you can do.

Cram Sense aims each practice question there — with a warm-up to start, a finisher to end on, and a wind-down when your answers say you're tired.

The science · Desirable difficultyBjork, 1994
One practice session9 questions
the stretch zone
warm-upright at your edgewind-down

Too easy teaches nothing; too hard teaches giving up. Each question aims for the edge of what you can do.

03
Wed–ThuHer cards come back right on time

It knows what you're about to forget.

Every idea gets its own memory. Cram Sense knows when each one will start to fade, and brings it back just in time — counting down to your test.

Spaced repetition

Each card comes back just before you'd forget it.

Review something right as it starts to slip and it sticks for longer — so the gaps between reviews grow. Miss a card and it's back in ten minutes; know it and it waits days.

Tell Cram your quiz date and nothing is scheduled past the day before. The cards you've ever forgotten get one last look that morning. Once it has enough of your answers, Cram Sense also learns how fast you forget.

The science · Spaced repetitionEbbinghaus, 1885 · Cepeda et al., 2006
One card: −3 × −4 = ?
Cram brings the card backBar = how much you'd remember

An illustration, not your real numbers.

Interleaving

It mixes it up on purpose.

Practicing one topic at a time feels smooth, but tests don't tell you which method to use. Mixed practice makes you choose — and that's the skill a test checks.

The Daily Mix is a six-step game built from what's weak or fading across your classes: guess first, a brain blast, cards, a mixed round, one new idea and a wrap-up.

The science · InterleavingRohrer & Taylor, 2007
Same 12 questions
One topic at a time
The Daily Mix
Sign rulesFactoringFractions

Mixed up, you have to work out which method each question needs — exactly what a test asks of you.

04
Thu–FriThe night before, and the morning of

It tells you the truth.

A study app that wanted your screen time would tell you to keep going. Cram Sense tells you how ready you really are — and when to stop.

Honest readiness

A readiness range you can trust.

Students are famously bad at judging how ready they are — and overconfidence costs grades. So Cram Sense shows a range, not a fake-precise score, and says “Too early to tell” until it has enough to go on.

The range narrows as the evidence grows. Tell Cram the grade you actually got, and it checks itself against it.

The science · CalibrationDunlosky & Rawson, 2012
Maya · ready for Friday?
Mon
Too early to tell
Wed
Getting there42–66%
Thu
Nearly there66–82%
Fri
Test-ready80–90%

A range, not a fake-precise score — it narrows as the evidence grows. Tell Cram your real quiz grade and it corrects itself.

Four things Cram Sense won't do.

Won'tGuess with too little to go on.“Too early to tell”No readiness number until it has enough answers. One miss never makes a weak spot.
Won'tCount “I'm not sure” against you.“That moves it up your list; it never counts as a wrong answer.”Being honest about what you don't know should only ever help.
Won'tPile on new material on test day.“Test day: a short warm-up on what you've already seen. Nothing new today.”The night before is for confidence, not panic.
Won'tKeep you studying for nothing.“Everything you've practiced is solid and fresh. More now won't move your grade — come back tomorrow.”When more won't help, it tells you to stop.
Friday · 7:45 am

Quiz day. Nothing new.

Monday she kept dropping a sign. Cram Sense found the real gap back in Unit 1, fixed the groundwork, drilled one step, and brought each card back right before it faded. This morning: a short warm-up on what she already knows.

“Test day: a short warm-up on what you've already seen. Nothing new today.”
Combining like termsSolidDistributing a negativeSolidOrder of operationsSolidEquations with fractionsSolidFactoringSolidInteger sign rulesSolid
Ready for Friday
Powered by Cram Sense

You'll feel it all over Cram.

Cram Sense isn't one more button. It's behind every screen that decides what you study next. Turn a card over to see what it did there.

Signals, not secrets

What Cram Sense listens to.

We'll tell you exactly what goes in. How it's all weighed is the part we've spent our time on.

It pays attention to
Right or wrongHow you answered — worked out, picked or hintedHow long since you last saw itHow quickly you answeredWhen you say you're unsureYour test datesWhich topics build on whichWhat your teacher wants you to focus on
It never uses
✕Learning-style labels✕Anything outside Cram✕Ads or tracking across other sites✕Selling what it learns

And one idea it leaves out on purpose: “learning styles.” The research doesn't back them (Pashler et al., 2008), so Cram Sense never sorts you into one.

Yours

What it learns about you is yours.

Cram Sense exists to help you study. That's all it's for.

Only you see the personal part.How fast you forget, what you've said you're unsure about, the patterns in your answers — Cram shows them to you, not your teacher or parents.From your own answers — only you see this. It changes as you do.
You can set it straight.Something it learned about you isn't right? Tell it. Or tell it to stop using it, or to forget it entirely.That's not right · Don't use this · Forget this
Never sold. Never ads.We don't sell your information or use it for advertising, and the AI companies we work with aren't allowed to train their models on it.Your study history stays in your Cram account.

How Cram treats your files and data →

Questions

Good questions, straight answers.

Is Cram Sense just a chatbot?

No. Cram Sense is Cram's own learning model. It keeps track of every idea you've practiced and decides what's worth your time. AI writes the explanations and questions; Cram Sense decides which ones you need, and when.

How long until it knows me?

It starts learning from your very first answer, and a five-minute warm-up on a new unit gets it up to speed fast. Until it has enough to go on, it says “Too early to tell” instead of guessing.

Does it work in the iPhone app too?

Yes. The website and the iPhone app run the same rules, and your progress follows you between them.

Can my teacher or parents see what it learns about me?

Teachers see how their assignments went, and parents can get a weekly summary. The more personal things Cram Sense learns — how fast you forget, what you've said you're unsure about, the patterns in your answers — stay yours.

Can I tell it it's wrong?

Yes. Where Cram shows you something it's learned about you, you can say “That's not right”, tell it “Don't use this”, or have it forget it entirely.

Does it cost extra?

No. Cram Sense runs in every Cram account, the free one included. Some of the features it powers, like parts of the Daily Mix, come with paid plans.

Know what you don't know. Then know it.

Start freeFree to start. No card.