Cramming works. For about three days.
Paste your notes. Tuón writes the flashcards and a practice quiz, then brings each card back right before you would have forgotten it, so the reviewer you make tonight still works next semester.
Free forever for notes and flashcards · 5 AI study sets a month
Good afternoon, Tim
Today's plan
6 cards dueRecent notes
This week
2h 40m
12 days in a row
Coming up
tuón · Cebuano and Tagalog
To study. To give something your full attention.
Your brain throws away whatever it stops seeing
That is not a flaw, and it is not a discipline problem. It is what memory is for: anything you meet once and never again gets cleared out. The fix is not more hours the night before. It is meeting the same card again just as it starts to slip, and doing that scheduling by hand is the part nobody keeps up.
The spacing effect
100+years of replication
One of the most replicated findings in memory research, first measured over a century ago and confirmed many times since. Timing review to arrive right as a memory starts to fade needs far less total study time than cramming to hold the same material. That is the whole mechanism behind spaced repetition: not a slogan, a measurable trade you can watch happen below.
Watch it happen to one card. Drag through the month.
Studied once
What does the mitochondria do?
Releases energy from food into a form the cell can use.
Reviewed when Tuón says
What does the mitochondria do?
Releases energy from food into a form the cell can use.
Four reviews. About six minutes in total.That is the whole difference between these two cards.
Based on the forgetting curve first measured by Hermann Ebbinghaus in 1885 and reproduced many times since. Drawn to show the mechanism; these are not measurements of Tuón users.
From notes to knowing it, in three steps
Le Chatelier's Principle
Le Chatelier's Principle: if a system at equilibrium is disturbed, it shifts to counteract the disturbance and restore equilibrium. Concentration: adding reactant shifts right (toward products); adding product
You already know how to make a reviewer
Long bond paper, four colours of pen, an evening gone. It works, and then the exam ends and it goes in the bin. Here is the same job, done the other way.
Turning a chapter into a reviewer
An evening, and your handwriting gets worse
About eleven seconds
Knowing what to study tonight
Whatever you feel least sure about
The exact cards that are due
The week after the exam
Bond paper in the bin, and it is gone
Still scheduled, still yours
Finding that one topic again
Flipping through a notebook
Search, tags, and linked notes
What it costs
Pens, paper, photocopies
Free for five study sets a month
Open it on whatever is in front of you
Tuón runs in the browser, so there is nothing to install and nothing to sideload. Review on your phone on the jeep, write notes on the library desktop: your schedule is the same in both, because it lives with your account and not the device.
Le Chatelier's Principle
Question
Which way does equilibrium shift when you add more reactant?
Answer
To the right, toward the products.
Tap to see the answer
Notes
Le Chatelier's Principle
If a system at equilibrium is disturbed, it shifts to counteract…
Enzyme kinetics
Michaelis–Menten describes the rate of an enzyme reaction…
Limits and continuity
A limit describes what a function approaches, not what it is…
Good afternoon
Today's plan
Review General Chemistry 1
12 cards · weakest subject
Recent notes
Le Chatelier's Principle
Enzyme kinetics
This week
2h 40m
Coming up
Native apps are coming to iPhone and Android
Offline review and a home-screen icon, without giving up the web version. You do not have to wait for them; everything above works in your browser today.
Soon on
App Store
Soon on
Google Play
It already knows how school works where you are
Pick your country once. In the Philippines, Tuón already knows the K-12 system: strands, core subjects and board exams built in, so setting up takes three taps instead of typing out every subject yourself. Everywhere else, you just type what you're taking; Tuón learns it from there.
In the Philippines
- Senior High strands built in (STEM, ABM, HUMSS and GAS), with the right subjects for each
- Core subjects like General Mathematics, Earth and Life Science and Oral Communication ready to pick
- UPCAT, ACET and DCAT prep treated as first-class subjects
Everywhere
- College programs from BS Nursing to Computer Science, with room to add your own, anywhere
- Notes that mix languages, English and Tagalog, English and anything else, stay exactly as you wrote them
Your country, then three questions, and you are studying.
Your country
PhilippinesYour school
Batangas StateBatangas State UniversityType anything. Your school does not have to be on a list.
Your strand
STEMABMHUMSSGASCollege instead? You pick a degree program here.
Your subjects
General Biology 1General Chemistry 1Pre-CalculusEarth and Life Science+ Add your ownEvery note and set is tagged with one, so nothing gets mixed up.
Priced in pesos, capped honestly
One study set is one note turned into 8-15 flashcards and a 5-question quiz. Writing notes, importing PDFs, making your own flashcards, and the entire review schedule are unlimited on every plan, including Free.
Free
Enough for one subject's reviewers each month.
- 5 AI study sets a month
- Unlimited notes, PDF imports, and your own flashcards
- Spaced repetition with typed recall and hints
- Timed tests drawn from your weakest cards
- Deadlines, timetable, Pomodoro, and a study log
- Private study groups with your class
- Import and export your notes as Markdown
Plus
Most popularA full course load: six subjects, twice a week.
- 50 AI study sets a month
- Notes up to 60,000 characters
- Bigger sets — up to 20 cards and a 7-question quiz
- Export study sets to Anki, CSV, or PDF
- Retention stats: what you're about to forget
- Share a set by link with your blockmates
- Everything in Free
Pro
For finals week, thesis season, and board review.
- 120 AI study sets a month, about four a day
- Notes up to 120,000 characters
- Largest sets — up to 25 cards and a 10-question quiz
- Priority generation: no waiting between sets
- Everything in Plus
Why numbers instead of “unlimited”: every study set costs us real money to generate. A cap we can honour beats an unlimited promise we’d have to quietly throttle. For scale, a student carrying six subjects and making a reviewer for each twice a week uses about 48 a month.
The things people ask first
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Stop making flashcards. Start remembering.
Start with one note tonight. You will have a set of flashcards before you finish your coffee, and the first review lands tomorrow.
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