Stop re-reading.
Start remembering.
Paste notes, PDFs or lectures. Stydra quizzes you until it sticks.
Free plan · No card required
Retrieval practice and spaced repetition, built in
How it works
- 1
Paste anything
Lecture notes, textbook pages, a PDF, a YouTube lecture link. Stydra reads it all.
- 2
Your pack builds itself
A step-by-step study guide, key concepts and a full set of flashcards — generated in about 20 seconds.
- 3
Review on schedule
Spaced repetition resurfaces each card right before you’d forget it. Daily review tells you exactly what’s due.
The toolkit
A tutor that knows your packs
Not a generic chatbot — it reads your packs and quizzes you back instead of just handing over answers.
Daily review that plans itself
Every card you rate is rescheduled with spaced repetition. Open the app and it tells you exactly which cards are due today — across every subject at once.
Quizzes that explain
Miss a question and the why is explained instantly — drawn from your own cards, not a generic answer.
Hint-first photo solver
Snap a problem and get a nudge before the answer — so you learn the method, not just the result.
Audio recaps
Any pack becomes a 2-minute spoken recap. Review on the walk to class with your hands in your pockets.
Streaks, XP and weak-spot drilling
Every card you miss lands in your mistake journal so you drill exactly what trips you up. Streaks and a friend leaderboard keep you showing up daily.
Start free. Upgrade when it earns it.
Free
$0forever
Your first pack is built at full Pro size — 25 cards
Everything you need to try the system.
Get started- 3 study packs per month
- 10 flashcards per pack
- Quizzes with explanations, study guide & key concepts
- Spaced repetition & recall practice — type it from memory, graded on meaning
- Share packs, friends & the leaderboard
- 5 photo problem solves a month
- Export to Anki or Quizlet
- 10 AI tutor replies a month
Pro
Recommended$19.99/ month
or $149.99/year — save 37%First month $13.99 — 30% off, applied automatically at checkout.
Unlimited packs and an AI tutor that knows what’s in them.
Get Pro- Everything in Free, plus:
- 25 flashcards per pack
- Unlimited study packs
- 40 photo problem solves a month
- Unlimited AI tutor replies — text anywhere, live voice in Safari or Chrome
- Deep-dive articles on any subject you’ve studied
Max
$39.99/ month
Every feature, with our highest limits — including 7 audio recaps a month.
Get Max- Everything in Pro
- Unlimited flashcards per pack
- Audio recaps (exclusive) — read aloud by your device’s built-in voice
- Highest usage limits on every AI feature
- Unlimited photo problem solves
- First access to new features
- Priority support
Unlimited plans are subject to fair use.
Try it risk-free. Not for you? Email us within 7 days of your first payment for a full refund. Cancel any time in Settings → Manage billing — your plan runs to the end of the period you’ve paid for. brandonyoo3147@gmail.com · Feedback
Before you ask.
Something else on your mind? Ask us directly — we read everything.
- Is Stydra really free?
- Yes. The Free plan lets you create study packs with flashcards, step-by-step guides, quizzes, XP and streaks — no credit card, ever. You only upgrade if you want more packs and the advanced tools.
- Can I keep using Quizlet or Anki?
- Yes — every Stydra pack exports as a CSV file that Anki imports directly, and you can copy its cards into Quizlet’s import box, so your cards can go wherever you already study. Inside Stydra, your notes become a study guide, flashcards and a quiz in one pack; the cards are scheduled with spaced repetition, an AI tutor works from the same cards, and Recall Mode grades what you write from memory against the answer on each card.
- Will it work for my subject?
- Any subject. Paste your notes, upload a PDF or lecture slides, photograph a page of handwriting, or drop a YouTube lecture link — biology, calculus, law, languages, history, you name it. If you can study it, Stydra can build a pack for it.
- Can I cancel anytime?
- Any time, and no questions asked. Open Settings → Manage billing in the app and cancel in the billing portal. You keep everything you’ve made, and your plan stays active until the end of the period you’ve paid for.
- Is my data private?
- Your notes and packs belong to you. They’re never sold and never used to train AI models — they’re only sent to the AI provider that builds your pack. Packs you choose to share are visible only to the people you share them with.
Make this your last cram week ever.
Paste your notes and get flashcards in about 20 seconds. Free, no card.
Try it free — no account