Step 1 of 5
Open your book
Pick a ready school book from the library or upload your own text, PDF or Word file. Say when you want to be ready and how much you will read today, and you see right away how long it will take.
NOTEBARS AI+ · Study app · beta
Read. Tap. Remember.
Notes used to take hours. Now you tap the words that matter and the AI writes them in seconds, strictly from your book, structured so you understand it: who, what, when, why. The brain fills up as you read and tells you when it is time for a round.
Is it for you? Find out in 1 minute, with 5 questions! →★ 4.5 on Google Play · 5,000+ downloads
“It takes a little time to learn, but it is worth it, because you remember the details.”Vilma, App Store
How it works · in 5 steps
From the book to the day you know it
You read and try to remember. The app handles the rest.
Step 2 of 5
Tap what matters
Read one paragraph at a time, in the text itself. Tap only the words you want to remember; what you already know, you leave. Then tap NOTEBARS.
Step 3 of 5
The AI writes your cards
Only from what you tapped, strictly from the text: the key on the left, the note on the right, and the paragraph’s questions. The note is the minimum that brings the sentence back, and the sentence stays tied to the card.
Step 4 of 5
The brain asks for a round
With every new question the brain gets heavier; when it can lift no more, it asks for a round. First you recall, “I don’t remember” or “I remember”, then you see the answer with the book’s sentence and rate it with stars. On “I don’t remember”, a plain-words explanation and a memory trick arrive on their own.
Step 5 of 5
Reviews at the right time
Reviews arrive within the hours you study, dense at the start and the end, and what gave you trouble comes back sooner. With the comprehension test you also check whether you understood it. On the goal day, one quick review and you are ready.
Who it is for
For anyone with something to remember
A school textbook, lecture notes, certification material: the flow is the same. The brain adapts to the text.
Student
History, biology, geography, any subject you have to remember. A round every 2–3 paragraphs, a review before the test.
University
Lecture notes and PDFs. Set the exam date and the reviews spread out until the day before.
Adult
Certifications, licences, professional exams, vocabulary. Study hours are yours, and a laconic style if you already know the material.
Parent
Examiner in five minutes: hold the device, read the question, give the stars. No need to know the material.
The same brain, a different text
The notes, the number of questions and the size of each round follow the text, not the age you declare.
Before you try it
Three things the brain does for you
You do not have to calculate anything. The brain keeps track of what you read and what you remember, and asks for the right work at the right moment. Behind it runs a timing model tuned through simulations of thousands of learners with different behaviours, grounded in real studies.
Reading…
filling up from the new questions
- 1
You absorb the new text while you read
Every few paragraphs the brain fills up and asks for a short round. Small, quick reviews while the material is fresh, instead of one big one at the end.
- 2
Reviews share out the work
The more reviews you add before the goal, the less you need to reach today. The bar rises a little at each review, and on the last one you are where you set it.
- 3
The more you answer right, the faster you move
What you know well leaves the round and the brain gets lighter. The round insists only where you struggle, until you learn it.
Try the flow
A whole chapter, just like in the app
Pick a chapter and set your goal. Then read, tap the underlined words and press NOTEBARS. When the brain is full, do your round.
1 · Goal2 · Study3 · Ready
Welcome
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The brain
The study companion that lifts the weights
You do not have to count what you read and what you know. The brain shows it at a glance: it fills with every new question, empties with the ones you know well, and asks for a round at the right moment.
The plates on the barbell show how high you set your goal. The brain is a picture that helps you organise yourself; it does not measure your real brain. When it asks for a round and when each review arrives is decided by the NOTEBARS model, tested in simulations of thousands of learners. The demo on this page is a simplified illustration.
Reviews
The plan listens to your stars
You set when you want to be ready and how many reviews you want. The app spreads them by itself over the hours you study, and every time you give 1–2 stars it comes back sooner to what you struggled with.
Dense at the start and the end, sparse in the middle
The first review comes early, while the memory is fresh. The last ones cluster again before the goal. In between the gaps grow. Short rounds, not the whole chapter at once. And where you struggled, an extra small round comes in sooner.
Example: 5 reviews up to the goal. Only the hours you say you study count, so no review lands at night, at school or at work. You set the hours.
For exams or a certification: you set the date on the book and the chapter's reviews spread out until the day before. For the important chapters you add as many as you like.
The review screen
Try it: choose stars or “I don’t remember”, see the answer and judge. The cards around stay blurred until you answer.
Inside a review: the questions sit in place of their cards and you answer in any order. You rate with stars before you see the answer, then you see it with the book’s sentence and you judge: right, almost right, or I got it wrong. Whatever you did not remember comes back shortly, within the same review. From the second round on you see only the groups that gave you trouble. If you like, before the memory part you first run the chapter’s comprehension test.
In the list, every chapter tells you in words where it stands: “Ready ✓ · next in 4 days”, “Time to review”, “A bit late · do it today”. No percentages.
Test
Build your own test from as many chapters as you like
You pick a book and its chapters, filter which questions you want to see and, if you like, set a goal day and reviews, just like at the start of a chapter. The test joins your list like a chapter: you run it whenever you want and it reminds you on the days you set.
History · Year 8
CHAPTERS
MEMORY · last answer
DIFFICULTY · as the model rates it
FROM YOUR ANSWERS
Watch: 1–2 stars or “almost right” · Dangerous: you thought you knew it · Critical: “I don’t remember” more than once
NUMBER OF QUESTIONS
20
GOAL DAY · optional
Tests
Every test is an object like a chapter in Reviews: a date, reviews, and its status in words.
From many chapters at once
Reviews work per chapter. A test can take as many chapters of the book as you like: all of them, the last three, or only the ones in the exam.
Only what matters to you
Every NOTEBAR is tied to questions, and every question knows how you did: the stars of your last answer, whether you flagged it, how hard the model rates it and whether it has caught you out. You filter and see how many questions are left.
Alive, not one-off
The test stays in your list. You run it again whenever you want, and if you gave it a goal day, its reviews find you on the days you set.
The cards
Your words define the card
Same text, three different ways of tapping, three different cards and three different sets of questions. The AI starts from what you tapped, turns it into keys or notes and splits the card into groups by itself. Blur the keys or the notes to see how a review works.
● Example of the app's output
Why this shape: the textbook is written to be read once, the card to be read again forty times. Cover the right side and the left becomes a question. The note is short, because it is what should come to mind the moment you see the key. It is not a summary: it is the minimum cue that brings the book’s sentence back, and that sentence opens next to it on every answer.
What else it does
More tools, without getting in your way
Comparison cards
When the text contrasts two or three concepts, they go side by side in columns and the difference stands out at once.
Double
Triple
Help on the spot, when you are stuck
If you give a question 1 or 2 stars, you do not move on blindly. You tap "A little help here" and the AI reads the paragraph and your NOTEBARS. It explains the sentence in plain words and gives you a memory trick for next time.
Help from the AI
What the sentence says
Saliva does not just moisten the food. It carries an enzyme that starts breaking down starch, the stuff bread is made of, while the food is still in your mouth.
Trick for next time
Chew a piece of bread for a while: it turns sweet, because saliva breaks starch into sugar.
Comprehension test: not only whether you remember it, but whether you understood it
NOTEBARS check memory, sentence by sentence. As soon as you finish studying, the AI reads the whole chapter and writes comprehension questions, about one per two paragraphs, that need a “why”, a “how”, a comparison or a conclusion, not a single word. They are marked like an exam: every question is worth 10 points and the model answer is split into 2–4 points with their marks, like the scheme an examiner holds. You answer in your own words, then see the points, tap the ones you said and get their marks. Comprehension has its own bar: it changes neither the reviews nor the memory. You run it at the end of study or, if you like, first in a review.
Comprehension test · Biology · The digestive systemQuestion 1 of 3
A NOTEBAR does not cover you? Tap the words, then the cell
The card holds only what you tapped. If something is missing, you type nothing: you tap in the text the words you want in, then the note cell. You choose whether they are added to the old note or replace it, and the AI rewrites the note.
The text · 1. tap words
Their leader was Zeus, who threw thunderbolts when angry, and he was king of the gods.
The card · 2. tap the cell
Tap a word in the text.
Reverse key and note
On any card you choose, the note becomes the key and you practise the other way round: you see the description and recall the term. One at a time, not all at once.
AI settings: you set the style
Normal notes in natural phrases, or laconic notes of 1–4 words for those who already know the material. In texts for young children the notes are written more simply, automatically.
Normal
Laconic
AI settings, as in the app
Note typeNotebarsCornell
NotesDescriptiveShort
Card titleYesNo
Card groupsYesNo
CapitalsKeysNotes too
In Cornell every card stays two columns, key on the left and note on the right; the comparisons that Notebars lays out as double and triple columns become separate cards, one under the other. Same content, different shape.
Why capitals. In long text capitals tire the eye; in short words, one to three at a time, they help everyone: straight lines, equal height, no letter pairs that mirror each other, and the eye reads them as a sign, not a sentence. That is why keys are always in capitals. Press DYSLEXIA and the notes turn to capitals too, as with the app’s “Capitals – Notes” setting: the child keeps keywords on both sides and builds the sentences in their head. We promise nothing, dyslexia takes many forms; we only say “try it”, for two reasons: capitals, and short.
Memory icons
You pin an icon to a note, from a library arranged in groups by topic. In the review you see it first, and it often brings the phrase along with it. A few per chapter, for the points that matter.
Bullets, numbering, emphasis
Notes become a bulleted or numbered list when the text enumerates. And whatever must stand out, you invert: dark cell, light letters.
A colour per paragraph
Every card gets its own colour. When you scroll through forty cards, you see where one ends and the next begins without reading a word.
Your own material
Paste text, upload a PDF or Word file, add photos and video inside the text. If all you have is photos of notes, turn them into text with any AI, using the app's ready prompts.
The parent as examiner
Holds the device, reads the question and gives the stars. Five minutes, with no need to know the material.
Marks and tests
Mark ★ important, ♥ favourite, ● secondary. Review only what you want and build tests from several chapters. With the flag you gather the hard questions in a list of their own, and at the end of every study session there is always “One more round”.
Breaks that count
Every 25 minutes it suggests a 5-minute break, and every fourth one 15. You decide. If you take it in full, you come back rested: the next round holds more and its answers count ×1.25.
English and Greek
The app speaks both languages, in every message and every screen.
NOTEBARS only
If you do not want questions today, you study with the cards alone. Your reviews then use blurred notes.
What it does not do: it does not read for you. It writes only what you tapped, from your own text. And it does not solve maths or physics problems. It is for what has to be retained: definitions, concepts, causes, dates, procedures. We say it up front, so you do not find out later.
Library
One book, many sets of notes
Anyone can upload a book: a teacher, a parent, a study group. Everyone who gets it reads the same text and makes their own notes from the words they tap. The text is shared; the memory is personal.
Teachers
- Upload oncethe chapter or the whole book
- Every student tapstheir own words
- Same textpersonal cards
Study groups
- Lecture notes
- Exam PDFs
- One uploadfor the whole group
Ready material
- Greek textbooksprimary to high school
- Exam guides
- More languagessoon
Four years of development and testing with students, in everyday study and in preparation for national exams in History and Economics.
And for anything that is not a textbook
Every PDF becomes a book: certification material, seminar notes, licensing exams, professional training. You tap the words and the cards with their questions are born.
Meet NOVA
Studying well can be learned
Four short videos for students and parents who want to understand not only what to read, but how to learn. With NOVA, the digital study guide of NOTEBARS. In Greek, with the method explained on this page in English.
- Understanding and memory: why "I got it" does not always mean "I learned it".
- Notes: how they become a learning tool rather than a transcript.
- Concentration: how structure in your study helps attention.
- Critical thinking: how it rests on knowledge and understanding.
Questions
What people usually ask
Who is NOTEBARS for?
School and university students, and any adult studying something they want to remember: a certification, an exam, a language, a profession. Parents can act as examiners. Accounts for schools, teachers, parents and students, with shared material and supervision, are coming soon.
Is the method backed by science?
It rests on two of the best-documented findings in cognitive psychology: active recall (the effort to remember strengthens memory more than rereading) and spaced repetition. The app organises both for you with its own timing model, tuned through simulations of thousands of learners with different behaviours, grounded in real studies and usage data.
How do I get my material into NOTEBARS?
Paste text, upload a PDF or Word file, or open a book someone shared with you. If all you have is photos, turn them into text with any AI, using the app's ready prompts.
How many questions does it make?
As many as fit your goal: fewer if you want the basics, more if you want full mastery. They are made only from the sentences where you tapped words.
What if I have no time today?
You choose fewer paragraphs. The app shows you the time you need for the ones you kept, and the rest wait for the next study day.
Is it complicated? I hear about cards, marks, filters…
You start with three things: tap words, press NOTEBARS, and do the round when the brain asks for it. Marks, filters and tests are there when you need them.
Does it work for maths and physics?
Not for solving problems. It works for the theory you have to remember: definitions, concepts, formulas and procedures.
I am an adult studying for a certification or exam. Is it for me?
Yes. Add your own material, text, PDF or Word, set the hours you study and the date of the exam, and the flow is the same: you tap, the brain asks for a round, the reviews arrive on time. If you already know the material there is the laconic style, with notes of 1–4 words. The app works in English and Greek.
How is it different from Anki, Quizlet or NotebookLM?
It does what Anki does, reviews from memory on a schedule up to the day you set, with one difference: you do not write the cards. You tap the words that matter in the book and the AI writes the card from your own selection, with the book’s sentence next to it. NotebookLM is better for explanations and discussion and combines well with it. In detail, criterion by criterion, and what we do not claim: Comparison.
How much does it cost?
Right now the app is in beta and free. A subscription of €7.99 a month for unlimited daily use is coming soon. Everything you have made, books, cards and progress, always stays yours.
Which devices does it run on?
Android and Huawei phones and tablets, iPhone and iPad, Mac, and Windows computers.
Start with NOTEBARS
Pick your device and download the app. Free during the beta.
Android phones and tabletsGoogle Play
iPhone and iPadApp Store
Mac computers and laptopsMac App Store
Windows computersMicrosoft Store
Huawei phones and tabletsAppGallery
Don't take our word for it. Ask an AI "what is NOTEBARS and where does it help", give it the address notebars.gr/en and judge for yourself.
Contact
We love questions
For schools, tutoring centres and teachers: a presentation, a pilot with your students, or a partnership. For anything else, just write to us.
notebars@ranisteq.com
RANISTEQ O.E. · Athens, Greece