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What is the powerhouse of the cell?
Click to revealThe mitochondria — it produces ATP through cellular respiration, converting glucose and oxygen into usable energy.
Click for next cardBuilt on cognitive science from 40+ years of memory research.
The way most of us study is working
Re-reading feels productive
Your eyes pass over the page and your brain says, "got it." Close the book and try to say it out loud — and suddenly you don't.
Cramming has an expiration date
An all-nighter can get you through tomorrow's test. By next week, most of it is gone.
Highlighters don't teach
A page covered in yellow looks like progress. The research is pretty clear that it isn't.
Built on decades of memory research.
Active recall
Pulling an answer out of your head is what builds the memory. Recognizing it on a list doesn't.
Spaced repetition
Review just before you forget and the memory gets stronger. Cue plans every review around that moment.
Productive struggle
When studying feels a little hard, it's working. When it feels easy, it usually isn't sticking.
Three steps. That's the whole thing.
A question shows up
No four choices to guess between. No hints to lean on. Just the question — the way it'll feel on test day.
You answer from memory
Type what you actually remember. The little bit of effort it takes is the part that makes it stick.
Cue plans the next review
You see the real answer and how close you got. Cue picks the perfect day to ask you again — based on your memory, not a one-size-fits-all schedule.
Everything you need to actually learn it
The 4-stage retrieval flow
Every Cue chapter session moves through four stages — the full cognitive science cycle, in one sitting. Most study apps stop at stage one.
Read the passage
Encoding. A real passage you actually read — not bullet points stripped from a textbook. Cue sets up the material the way your brain needs to take it in.
Write the main idea
Immediate retrieval. You summarize what you just read in your own words. Instant feedback, no waiting.
Adaptive quiz (ICAP)
Multiple-choice questions blended across difficulty tiers. Wrong answers get re-queued until you get them right. The mix adjusts to your current chapter tier so you're always at the edge of your ability.
FSRS flashcards
Cards generated from the passage enter the spaced repetition scheduler. Cue picks the exact day to surface each one again — when your recall is about to fade but before it's gone.
It learns how you forget
Cue notices which cards you keep slipping on and which ones you've nailed, then quietly adjusts. The shaky stuff comes back sooner. The solid stuff steps back so you're not wasting time on what you already know.
A tutor in your pocket
Stuck on something? Ask Cue mid-session. You'll get a patient, plain-English explanation — no judgment, any hour.
Know what you actually know
A heatmap of what's solid, what's shaky, and what you should hit before the test. No guessing.
Smart grading, almost instantly
Type an answer in your own words and Cue tells you what you got right, what you missed, and why — fast enough that you stay in the flow of studying.
Read. Answer. Done.
Teachers assign a passage with questions. Students open it, read, and answer — right inside Cue, no separate tool needed.
A plan for the week
The Focus Plan reads your FSRS data, identifies your shakiest chapters, and maps out exactly what to study and when to hit 85% retention.
Teachers and students are seeing results.
“My students actually remember biology now. The FSRS scheduling means they review right at the point of forgetting — it's like having a personal study coach for every kid.”
“I went from cramming the night before to doing 10 minutes a day. My bio grade went from a C to an A- in one semester. The streak counter keeps me coming back.”
“The multiplayer battles changed everything for review days. Kids who never participate are suddenly racing each other to answer first. It's the most engaged I've ever seen them.”
Stop forgetting what you study.
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