More than an AI chat. Your full study system.
Upload anything and Didata builds your notes, flashcards, exercises, and mind maps — or start from scratch. Practice with a 10k+ question bank, fix your essays, and know what to review and how to improve, subject by subject.
7-day guarantee · Cancel anytime · No card needed to create an account
- 435studies
Proven by the science
Spaced repetition has been validated across 435 studies — and it's the engine scheduling every review inside Didata.
— Educational Psychology Review
- 61,000students
Tested with real learners
The studies behind spaced repetition pooled results from more than 61,000 students — real learners across classrooms, not lab volunteers.
- 10k+exercises
Real exam questions, drilled by source
ENEM, entrance exams, medical residencies, public tenders — organized by source, edition, and subject so you can drill exactly what you need.
- 9k+flashcards
Ready-made decks, reviewable day one
Skip the deck-building chore and start reviewing immediately with curated decks across the subjects that matter.
See the scientific references
| Reference | Topic |
|---|---|
| Ebbinghaus, H. (1885) | The forgetting curve and the theoretical basis of spaced repetition — Über das Gedächtnis |
| Kerfoot, B. P. (2010) | Spaced education improves the retention of clinical knowledge — Journal of Urology, v. 183 |
| Sadati, L. et al. (2021) | Flashcards versus mobile learning for retaining technical content, with surgical technology students |
| Santos-Ferreira, D. et al. (2024) | Dose-dependent effect of digital flashcards on medical physiology performance — Advances in Physiology Education |
Non-exhaustive list. New references are added as they're reviewed.
- 01Ingest
Bring every source into one place.
PDFs, YouTube videos, audio, or plain text. Didata transcribes, processes, and indexes each one. No material yet? Start from curated editais for public tenders, residency, ENEM, and entrance exams.
- Import any materialPDF, YouTube, audio, or text
- Start from an editalPublic tenders, residency, ENEM, entrance exams
- Question bank and pre-built decks10k+ questions, 9k+ flashcards
Your library
01 · 05Bring yours. Or start from ours.
PDFYouTubeAudioTextorCurated bankStart from a topic10k+ questions · 9k+ flashcards - 02Plan
Plan the week before you study.
Didata combines subjects, availability, and study signals into an executable routine. Blocks can sync to Google Calendar, and Didata Score helps guide priorities without rebuilding the cycle after every session.
- Subject cycleOrganized around your routine
- Google CalendarSynced study blocks
- Didata ScorePriorities from your own signals
Weekly plan
02 · 05Your study week starts already organized.
Preparation cycle
Materials, curated editais, and availability enter the same plan.
Google Calendar
7:30
Cardiovascular physiology
Short review before class
19:00
Residency questions
Priority-guided block
21:15
Retention flashcards
Session wrap-up
22:00
Edital notes
Organize the next block
- 03Materials
Didata builds your study material.
Notes with images and formulas. Flashcards that adapt to your recall speed. Multiple-choice and open-ended exercises across three difficulty levels. Mind maps you can reshape as you learn.
- NotesStructured, editable, LaTeX support
- FlashcardsSpaced repetition integrated
- ExercisesMultiple choice and open-ended, calibrated
- Mind mapsRadial, fully editable
Built from your material
One source. Four ways to study.
Your materialDidataNoteFlashcardExerciseMind mapStop assembling study material by hand — Didata handles the busywork.
- 04Review
Practice the way that sticks.
Spaced repetition with four self-assessment levels. Exercises that pull from your material and our question bank. Essay correction using the rubric you pick — ENEM, vestibular, concurso, or your own — with inline comments and per-criterion scores. Pomodoro integrated with playlists.
- Spaced repetitionEach card scheduled at the right moment
- Essay correctionYour rubric, inline comments, scored
- Pomodoro integratedFocus sessions with playlists
03 / 12Review in progress
Rate once. The next review adapts.
Biology · Krebs cycleWhich step regenerates oxaloacetate?
Forgot<1minHard3 daysGood7 daysNowNext reviewEasy14 daysRetention curve0d · 3d · 7d · 14d - 05Progress
Know what to do in your next session.
Didata Score reads retention, performance, regularity, and consolidation for each subject to turn progress into direction. Instead of just showing a number, it points to what to review now, what needs reinforcement, and where you can keep moving forward.
- Didata ScorePractical guidance by subject
- Progress signalsShow where to push and where you're improving
- Streaks and heatmapRhythm you can use to adjust your routine
Didata Score · Biology
This week's focusToday's recommendationReview 4 Krebs flashcards today to get Biology back into rhythm.
You barely revisited this topic across different study formats this week.
Progress with direction
Don't use progress only to look back. Use it to decide what to do now.
Didata tracks every subject and turns study signals into practical guidance: what to review, where to push harder, and what's already improving.
Each subject shows your real priority
Didata Score summarizes where that subject stands so you do not waste energy interpreting the dashboard. In seconds, you can tell whether it is time to rebuild the basics, reinforce review, or keep your momentum.
The signals explain the recommendation
Retention, performance, regularity, and consolidation show why that suggestion appeared. When one drops, you can tell whether you need more review, more practice, more consistency, or broader contact with the topic.
A recommendation you can act on right away
‘Review 8 physiology flashcards before bed.’ ‘Redo the 3 mixed-chemistry questions you missed on Monday.’ Specific enough to act on — today, in the time you have.
Your history helps you adjust your routine
The heatmap shows when you disappear, when you lock in, and when you perform best. That helps you plan the next week from what is actually happening, not from guesswork.
- Retention82
- Performance76
- Regularity91
- Consolidation48
Review 8 physiology flashcards before bed to get your rhythm back.
AI for studying
An AI that belongs in your study routine.
Not a general-purpose chatbot. A purpose-built study AI — with the right formats, the right focus, and real limits on what it touches.
Built for learning, not chatting
Notes, flashcards, exercises, mind maps, essay feedback — every output is shaped for how people actually study, with formats, difficulty levels, and review cadence that match the material.
Grounded in your material
Everything is generated from your PDFs, videos, audio, text, or our curated question bank — and the source sits right behind every answer so you can verify it.
Your data stays yours
LGPD-compliant, with full deletion on request. Nothing you upload trains any model — ours or anyone else's.
On mobile
Didata already fits in your pocket. The native app is next.
You don't have to wait for any launch to study on your phone. Didata runs in full in your mobile browser — same login, same flashcards, same progress as on desktop. Reviewing in line or between classes already works today.
- Everything the desktop hasFlashcards, exercises, notes, mind maps, essays and Pomodoro.
- Progress stays in syncStart a review on your phone, finish it on your computer. Same account.
- Install as a shortcutAdd it to your home screen and Didata opens full screen, with no browser bar.
In development
Native apps for iOS and Android
We are building the native apps, with offline review and a notification at the right moment to review. Leave your email and we will let you know the day it ships.
Who it is for
Different finish lines. The same memory problem.
The forgetting curve does not care which exam you are taking. If you need to remember a lot of material on the right day, Didata was built for you.
Public tender candidates
A huge syllabus, a study cycle that never closes and review that is always postponed.
Medical residency
A volume of content that only holds up with spaced review and targeted questions.
University entrance exams
Three years of material to recall across two days of testing, plus the essay.
Bar exam and law
Statutes and case law that demand active recall, not rereading.
University students
A full semester condensed into one exam, with material scattered across PDFs and lecture recordings.
Certifications and technical exams
Specific content with few ready-made sources — you bring the material and Didata builds the practice.
In short: anyone who needs to retain content in order to pass something.
Real students, real routines.
ENEM, entrance exams, medical residency, public tenders, college — same Didata, different finish lines.
One plan covers everything. The add-on is optional.
The Didata Plan gives you the whole hub, with clear monthly limits and no per-tool upsells. Didata+ is an add-on — you never need it to study.
Every week without scheduled review is a week of content you will have to study from scratch again. The forgetting curve does not wait for the next exam announcement.
Recommended
Didata Plan
CompleteFor turning materials, practice, and calendar time into a routine guided by Didata Score.
equivalent to R$20.66/mo
R$334.80 billed monthly · you save R$86.90 per year
R$20.66 a month — less than a single workbook, for a full year of prep.
Mind maps
100/mo
Flashcards
100/mo
Exercises
100/mo
Notes
100/mo
Media Processing
600/mo
Essay correction
20/mo
Included in the plan
- Study plan with Google Calendar, Didata Score priorities, and curated editais for public tenders, residency, ENEM, and entrance exams
- Access to the Pomodoro focus timer that syncs with your favorite YouTube playlist
- Smart review scheduling that adapts to your learning pace
- Notes workspace with advanced editor, attachments, and material generation
- Build custom exercise lists from the exercises database
- Continuous Marathon mode for practice sessions at your own pace
- Access to free store decks
- Didata Score to understand strengths and next focus areas
- Support via email and WhatsApp
7-day unconditional guarantee
Try it for 7 days. If it is not for you, we refund everything.
You have 7 days to use all of Didata — import your material, generate flashcards, work through exercises, get an essay graded. If you decide it is not worth it, just tell us within that window and we refund 100% of what you paid. No long form, no awkward questions.
- Applies to every plan
- Full refund
- One email or WhatsApp is enough
Didata+
For learners who want access to exclusive resources.
one-time payment
- Access to 7,000+ exclusive cards from premium store decks
- Access to exclusive mindmaps
Works alongside the plan. Access exclusive content created by specialists to strengthen your preparation.
7-day unconditional guarantee
Ready-made mind maps are sold by the pound, and never on exactly your subject. Here you generate, edit and redo as many as you want, shaped by what your exam actually asks.
Secure payment via Stripe. Cancel anytime, without bureaucracy.
FAQ
Questions before you start?
Straight answers on how Didata works, what it generates, and how your data is handled.
Still have questions?
Get in touchStart your study plan today.
Turn your first PDF, video, or class into notes, flashcards, exercises, and mind maps.
7-day unconditional guarantee
