The reader that quizzes you
Bring a PDF, article, or video. Winda turns it into flashcards and quiz questions, then schedules reviews with spaced repetition so it sticks.
The spacing effect is one of the most robust findings in memory research: reviews spread out over time produce far stronger retention than the same reviews massed together — yet most study habits ignore it entirely.
The reason turns out to be retrieval. Each time you pull a fact back out of memory, just before you would have forgotten it…
According to the passage, what makes memories last?
Pick an answer to see when Winda would ask it again.
That's the spacing effect — exactly how Winda plans your reviews.
Not this one. Miss a question and it comes back sooner, not later.
Next review: in 3 days
It'll ask again today
Try the other answer — the next review moves with it.
Start from what you're already studying
- YouTube
- PowerPoint
- Images
- Web articles
- Word
- Text snippets
…or save anything in one click with the Chrome extension
From reading to practice
Bring anything you're studying — read it with AI, turn it into questions, and practice on a schedule built to make it stick.
Bring what you're studying
Web pages, PDFs, slides, YouTube, and images. If you're learning from it, hand it over.
Learn more 02Read with AI beside you
Ask questions, annotate and translate passages, or turn the material into a guided lesson that checks your understanding section by section.
Learn more 03Practice with flashcards and quizzes
Cards and multiple-choice questions are written from your material — and each review lands just before you'd start to forget.
Learn moreMake it stick
Questions written from your material
Winda drafts them from the passages you select or from a whole document. Once a question joins your reviews, how you answer decides when you see it again.
Generated for you
Select a passage, a chat, or the whole source — AI writes the questions, so you never start from scratch
Yours to review and edit
Every question is yours to rewrite or delete before you add it to your reviews
Scheduled along the forgetting curve
Answer it well and the gap grows; miss it and it comes back sooner
A steepening yield curve most likely reflects:
過学習を防ぐために、訓練中にランダムにニューロンを無効化する手法を …? と呼ぶ。
Remembering isn't willpower. It's scheduling.
Each card comes back right before you'd forget it:
Why Winda
What chat, Anki, and question banks each miss
AI notebooks & chat
AI notebooks answer questions about your sources — the summary gets read, the original doesn't.
Winda is a reader first: you read the original with AI beside you, and the questions come from what you actually read.
Anki & flashcard apps
Anki schedules reliably, but leaves every card for you to write by hand.
Winda writes the cards as you read, source attached, on the same proven schedule.
Read-it-later apps
Read-it-later apps get you to the end of the article, and stop there.
Winda reads it with you, then quizzes you on it and schedules the review, so it stays.
Question banks
Question banks drill a standard syllabus, not the material in front of you.
Winda builds questions from your own sources and your misses, each linked to its page.
What people study with Winda
Frequently asked questions
Tools like NotebookLM are built for asking about your sources: you get answers and summaries, but you rarely read the original. Winda is built for reading it — a clean reader with AI beside you — and what you read becomes questions, scheduled along the forgetting curve until you can answer without looking.