The AI study workspace
Stop re-reading.
Start remembering.
Paste your notes, a PDF or a YouTube lecture and watch flashcards, quizzes and a study guide build in seconds. Stydra explains what you get wrong and schedules your reviews — so it actually sticks for the exam.
Free plan · No card required · First pack in ~2 minutes
Your notes
The French Revolution began in 1789 as a period of radical political and societal change in France…
~8s to generate
12-day streak kept
How it works
Watch your notes become a system.
Paste anything
Notes, PDFs, a YouTube lecture — drop it in raw.
It becomes a system
Flashcards, a study guide and a quiz build themselves in seconds.
Review until it sticks
Spaced repetition resurfaces each card right before you'd forget it.
Your notes — bio_lecture_07.txt
What is the powerhouse of the cell?
The mitochondrion
Where does glycolysis happen?
The cytoplasm
Products of light reactions?
ATP + NADPH
What is chemiosmosis?
H+ gradient drives ATP synthase
Study guide
Due today
How it works
From paste to exam-ready in three steps.
No deck-building, no setup, no learning curve. The system does the planning — you just show up and review.
Paste anything
Lecture notes, textbook pages, a PDF, a YouTube lecture link. Stydra reads it all.
Your pack builds itself
A step-by-step study guide, key concepts and a full set of flashcards — generated in about eight seconds.
Review on schedule
Spaced repetition resurfaces each card right before you'd forget it. Daily review tells you exactly what's due.
The toolkit
Six tools. One system. Built to make things stick.
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.
Due today
A tutor that knows your notes
Not a generic chatbot — it reads your packs and quizzes you back instead of just handing over answers.
Why does SN2 prefer primary carbons?
Think about what blocks the backside attack… what did your Ch. 4 notes say about steric hindrance?
Bulky groups get in the way — so primary is open!
Quizzes that explain
Miss a question and the why is explained instantly — pulled from your own notes, 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.
∫ 2x · eˣ² dx = ?
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.
The difference
Other apps generate. Stydra teaches.
Dumping flashcards on you is the easy part. The hard part is making sure you remember them on exam day — that's what the rest of the system is for.
Explains every wrong answer
Miss a quiz question and Stydra explains why — pulling from your own notes. You leave understanding it, not just knowing you were wrong.
Most apps mark you wrong and move on.
Remembers what you struggle with
Hard-rated cards are tracked and resurfaced. Overdue reviews appear automatically. You always know exactly what needs work.
Most apps show you the same deck every session.
Plans your exam prep
Set your exam date and get a day-by-day schedule built around your actual progress and weak spots.
Most apps generate content and leave the planning to you.
Side by side
Where Stydra is actually different.
| Capability | Stydra | Turbo AI | Anki | Solvely |
|---|---|---|---|---|
| Notes, flashcards & quizzes from your material | Yes | Yes | No | Yes |
| Spaced repetition scheduling | Yes | Yes | Yes | Yes |
| AI chat over your own notes | Yes | Yes | No | Yes |
| Audio recap of your material | Yes | Yes | No | Yes |
| Free-recall grading — type it from memory, AI marks it | Yes | No | No | No |
| Explains why your wrong answer was wrong | Yes | No | No | No |
| Weak-spots session built from cards you missed | Yes | No | No | No |
| Photo problem solver that hints before it solves | Yes | No | No | Yes |
| Live voice tutor conversation | Yes | No | No | No |
| Study plan built from your exam dates | Yes | No | No | Yes |
Compared on publicly listed features, July 2026. These tools ship changes constantly — check their own sites for the latest.
Why it works
Reading your notes again isn't studying.
Recognition feels like knowing. It isn't. The thing that reliably moves a grade is pulling the answer out of your own head, being told exactly where you went wrong, and meeting that same gap again a few days later. That loop is the whole product — everything else here exists to serve it.
The method — not a marketing claim
Retrieval practice and spaced repetition, built in
Say it from memory
Recall Mode makes you type the answer in your own words before you see it. The AI marks what you actually got right — no more nodding along to a card you flipped too fast.
Find out why you were wrong
Miss a quiz question and Stydra explains the specific misconception using your own material, not a generic definition.
Meet your weak spots again
Every rating feeds spaced repetition, so the cards you fumbled come back on schedule — and weak-spots sessions drill only those.
Stydra is new, so you won't find invented five-star reviews on this page. Try it on your own notes and judge it yourself.
Try it free — no accountPricing
Start free. Upgrade when it earns it.
Free
Everything you need to try the system.
- 3 study packs per month
- 10 flashcards per pack
- Quizzes with explanations, study guide & key concepts
- Spaced repetition, XP & streaks
- Share packs, friends & the leaderboard
- 5 photo problem solves a month
Pro
7-day free trialThe full study system, for one exam season or all of them.
- Unlimited study packs
- 25 flashcards per pack
- AI tutor on every page
- 40 photo problem solves a month
- Deep-dive articles
- Live voice tutor
Max
7-day free trialZero limits, every feature, first in line.
- Everything in Pro — unlimited
- Unlimited packs & flashcards
- Audio recaps (exclusive)
- Premium voice, coming soon
- Unlimited photo problem solves
- First access to new features
- Priority support
Try it risk-free. Paid plans start with a free trial and you won't be charged until it ends. Cancel in one click — no emails, no “are you sure” loops. No card needed for the Free plan.
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.
How is this different from Quizlet or Anki?
Quizlet makes you build cards by hand and Anki has a brutal learning curve. Stydra generates everything from your notes in seconds — flashcards, guides, quizzes — with built-in spaced repetition, an AI tutor that knows your material, and an interface that actually feels good to use.
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?
Anytime, in one click, no questions asked. Pro and Max both start with a 7-day free trial, so you can run a full study week before you pay anything.
Is my data private?
Your notes and packs belong to you. Everything is secured per-account and is never shared or sold.
Make this your last
cram week ever.
Paste your notes and see your first pack in about two minutes. Free, no card.