Recall before you reread
Trying to remember sticks better than reading again. Practice starts with a question, and a mistake becomes a clue, not a telling-off.
School, English and German, with an AI tutor
Write the topic. The practice is ready right away.
Questions, games and flashcards on your topic, review on the right day and a tutor who explains in another way when you get stuck. For students in Brazilian schools and for Portuguese speakers learning English or German.
Notebooks you can open:
- Portuguese
- Maths
- German
- Science
- English
- History
- Geography
Free during the beta. No card needed.
The lessons and the tutor explain in Brazilian Portuguese. The app's menus are also in English.
20-second test
Try it now
Three questions so you can feel how it works. No sign-up, and nothing leaves your browser. If you get one wrong, you get a clue and try again.
- You answer before you see the answer.
- A mistake becomes a clue.
- What you get right comes back on the right day.
practice example
- German, now
- Maths, next
- Science, next
- Your notebook
Explicadora in testing
When reading is not enough, she explains out loud.
The Explicadora is a simple character who explains the topic out loud, sentence by sentence, with captions. She asks a short question, takes your answer, typed or dictated, and, if you get stuck, explains in another way. In her very first sentence she says she is an artificial intelligence.
- Portuguese, history, geography, chemistry, physics, sociology, philosophy and languages.
- Everything she says also appears in writing.
- You ask: simpler, an example, slower.
Why it works
What the science of studying says, applied to your day
Every part of the app follows a tested idea: recalling before rereading, reviewing on the right day and explaining in your own words.
It comes back at the right time
What you got right comes back in a few days, and what gave you trouble comes back sooner. That is spaced review, in short sessions.
Type before you see the answer
Many questions ask for the answer in your own words before showing any option. The clue comes only afterwards.
A tutor that knows your notebook
The tutor answers from the lesson you are studying and shows where the answer came from. If the first explanation does not click, it tries another one.
See what you already know, with no grades and no ranking
The map shows what is new, being learned, solid or mastered. No comparing yourself to others and no grade judging you.
Sources:Roediger and Karpicke (2006), Psychological Science, on recalling before rereadingCepeda and colleagues (2006), Psychological Bulletin, on spaced reviewDunlosky and colleagues (2013), Psychological Science in the Public Interest, on the study techniques that work best
In three steps
From the first minute to the week plan
You create the account in a minute. Then a short conversation builds the plan, and the daily practice fits your routine.
Account and conversation
You create the account in a minute. Then you tell the tutor your goal, the time you have and what you already know. There are only a few questions, most of them taps.
Plan
The plan breaks the path into short sessions, with reviews scheduled and a clear next step. If you are doing well, practice gets harder; if you get stuck, the plan takes a smaller step. It changes when your routine changes.
Daily practice
Each day has a short session to recall, practise and listen. When you need it, you ask for an explanation and the tutor shows where the answer came from.
Languages and school
Two paths: school and a new language
Two paths, one idea: short practice, a plan that adapts, and an explanation when you need it.
Languages
German and English from A1 to B1, for Portuguese speakers: the lessons explain in Brazilian Portuguese. Reading, listening, dictation, vocabulary, grammar and writing. The content is in beta: if you find a mistake, tell us and we fix it.
School
Each subject is a notebook. You type the topic, the practice is built on the spot and saved in the notebook. When exams come, a mock test covers the whole notebook.
For parents and guardians
The account for children is coming
When it opens, only an adult will be able to create a child's account. You decide what the child sees and does, and the dashboard shows how long they studied, what they studied and where they got stuck. No marketing aimed at the child.
- You create the account and keep control of it. coming soon
- Weekly summary and inactivity alert by e-mail, if you want them. coming soon
- An AI assistant that knows your family's progress and answers at any hour. Refunds and sensitive cases are handled by a person on the team. coming soon
Plans
Free during the beta. After that, you decide.
Everything that is ready today is free and asks for no card. When the paid plans open, you get a notice first, see the price and choose. Nothing is charged on its own.
In the beta, free
- School notebooks with practice built on the spot
- English and German from A1 to B1, in beta
- Tutor in the chat and review on the right day
- Explicadora in testing
After the beta
- Basic, Premium and Platinum plans, and Family when the account for children opens.
- Monthly, semiannual or annual. On the annual plan, you pay twelve months and use fourteen.
- Payment by Pix, boleto, credit card or debit card.
- The prices are not set yet.
No fine print
Questions
What we can answer today, with the product as it is now.
Is it free for now?
Yes. During the beta, using the product is free and we do not ask for a card. The beta is the period when we test and adjust before opening the paid plans.
Do I need a card?
No. Creating an account and using the beta does not ask for a card. When billing starts, you will be told in advance and can decide.
Can I cancel?
There is no billing during the beta, so there is nothing to cancel. When the paid plans open, cancelling will be as simple as subscribing, and the seven-day right of withdrawal under the Brazilian Consumer Defense Code applies.
Can I talk to the tutor?
You can write or dictate with the microphone, and the Explicadora explains out loud, with captions. Talking to the tutor by voice, like a phone call, is still in testing, for adults only.
Does it work on my phone?
Yes. It works in your phone's browser, with nothing to install. If you like, you can add EstudaVai to your home screen.
How much time per day?
You choose the time you have. The plan builds short sessions to fit it, and can add more later if you want.
Is it for children?
Not yet. During the beta, only adults create an account. A child's account will be created by a guardian, with a dashboard and controls, after the legal review.
Does the tutor replace the teacher?
No. The tutor helps you understand the subject and practise, but it does not replace the teacher, give grades or decide who passes.
Is the content reviewed?
Not yet by a native speaker. The German and English content is in beta: when someone finds a mistake, we fix it.
Your next step
Start with what you want to study.
Create your account, tell it what you want to learn and see your first plan. The beta is free and needs no card.