Study Smarter, Not Harder
AI-powered study tools backed by learning science. FSRS spaced repetition, Socratic tutoring, and adaptive quizzes that actually improve how you learn.
Free to use · No account required · Evidence-based
Most study tools help you review. Ours help you learn.
Decades of cognitive science research show that how you study matters more than how long you study. These are the numbers behind our approach.
Active recall + spaced repetition vs 30% with passive review
Karpicke & Roediger, 2008Socratic AI tutoring outperforms in-class active learning in randomized trial
Harvard RCT, 2025Students using metacognitive strategies accelerate learning significantly
Education Endowment FoundationSix tools that change how you learn
Every feature is built on peer-reviewed research — not guesswork.
FSRS Spaced Repetition
The same algorithm used by Anki, scheduling reviews at the exact moment you're about to forget. 20–30% fewer reviews to learn the same material.
Based on FSRS-5 open-source researchSocratic AI Tutor
An AI that asks the right questions instead of giving you the answers. Adapts its approach based on your mastery level. Powered by Claude & GPT for accurate, safe guidance.
0.73–1.3 SD gains in Harvard RCTAdaptive Difficulty
Questions automatically adjust to your skill level. Stay in the optimal challenge zone for maximum learning — never bored, never overwhelmed.
Zone of proximal developmentMetacognitive Prompts
Prompts that teach you to think about your thinking. Helps you develop study strategies that stick — worth +7 months of learning gain per year.
EEF Metacognition guidanceMastery-Based Progress
Move forward only when you truly understand. Track your mastery across skills and topics with clear, motivating progress indicators.
Bloom's mastery learningSmart Flash Cards
Sort by confidence, review on a science-backed schedule. Cards get easier as you learn, harder when you forget — automatically.
Confidence-weighted schedulingTry it yourself — no sign-up required
Take a sample quiz and experience the AI study tools in action. See how spaced repetition scheduling and Socratic guidance work in real time.
How it works
Four steps from first question to lasting knowledge.
Take a quiz or create flash cards
Pick from hundreds of expert-reviewed quizzes or create your own flash cards on any topic. Start learning in seconds.
Our AI learns what you know
As you answer, the system builds a model of your knowledge — identifying strengths, weaknesses, and misconceptions in real time.
Get personalized guidance
FSRS schedules your reviews at the optimal moment. The Socratic tutor asks guiding questions when you're stuck. Difficulty adapts to you.
Master the material
Achieve 80% long-term retention — not just short-term memorization. Track your progress and watch your mastery grow over time.
Not all study tools are equal
See how evidence-based AI compares to generic quiz platforms.
| Feature | Generic Quiz Tools | Our AI Study System |
|---|---|---|
| Spaced repetition | ✗ None or basic | ✓ FSRS-5 algorithm |
| AI tutoring | ✗ No | ✓ Socratic method |
| Adaptive difficulty | ✗ Static questions | ✓ Real-time adjustment |
| Knowledge tracking | ✗ Per-session only | ✓ Cross-session mastery |
| Metacognitive prompts | ✗ No | ✓ Built-in |
| Research-backed | ✗ Marketing claims | ✓ Peer-reviewed studies |
Frequently asked questions
How does FSRS spaced repetition work?
FSRS (Free Spaced Repetition Scheduler) is an open-source algorithm that models how your memory decays over time. After each review, it calculates the optimal moment to show you the material again — right before you would forget it. This means you spend less time reviewing things you already know and more time on what you're about to forget. Research shows this approach leads to 80% long-term retention compared to about 30% with passive re-reading.
What makes the Socratic AI tutor different from ChatGPT?
Most AI chatbots simply give you the answer when you ask a question. Our Socratic tutor does the opposite — it asks you guiding questions that lead you to discover the answer yourself. This approach, based on a 2025 Harvard randomized controlled trial, produced learning gains of 0.73 to 1.3 standard deviations compared to traditional methods. The tutor adapts its questioning based on your demonstrated mastery level and never reveals answers prematurely.
Is this backed by real research?
Yes. Every feature is grounded in peer-reviewed learning science. Our spaced repetition uses the FSRS-5 algorithm validated across millions of reviews. The Socratic tutoring approach is supported by a 2025 Harvard RCT. Metacognitive prompting draws on the Education Endowment Foundation's guidance report showing +7 months of learning gain. We cite specific studies throughout the platform so you can verify the evidence yourself.
How does adaptive difficulty work?
As you answer questions, our system tracks your accuracy and response patterns across topics. If you're getting questions right quickly, difficulty increases. If you're struggling, it offers easier questions to rebuild confidence and fill knowledge gaps. This keeps you in what psychologists call the 'zone of proximal development' — the sweet spot where learning happens fastest.
Can I use this for exam preparation?
Absolutely. Our AI study tools are especially effective for certification prep, standardized tests, and professional exams. The spaced repetition system ensures you retain material long-term (not just until test day), while adaptive difficulty focuses your study time on your weakest areas. Many users report cutting their study time by 30-40% while improving their scores.
Is my data private?
Yes. We do not sell your data or share it with third parties for advertising. Your study progress and quiz responses are used only to personalize your learning experience. You can review our full privacy policy for details on data handling, retention, and your rights.
Research we build on
Our features are grounded in peer-reviewed cognitive science and education research.
- Karpicke, J. D., & Roediger, H. L. (2008). The critical importance of retrieval practice to long-term retention. Science, 319(5865), 966–968.
- Bloom, B. S. (1984). The 2-sigma problem: The search for methods of group instruction as effective as one-to-one tutoring. Educational Researcher, 13(6), 4–16.
- Kumar, A., et al. (2025). AI tutoring outperforms active learning in a randomized controlled trial. Proceedings of the National Academy of Sciences. Harvard University.
- Bjork, R. A., & Bjork, E. L. (1992). A new theory of disuse and an old theory of stimulus fluctuation. In A. Healy et al. (Eds.), From Learning Processes to Cognitive Processes: Essays in Honor of William K. Estes (Vol. 2, pp. 35–67).
- Education Endowment Foundation. (2021). Metacognition and Self-Regulated Learning: Guidance Report. London: EEF.
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