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Data Structures & Algos · Graphs & Traversals
You're 26% through this track. 5 cards are due for review.
Everything you need to actually retain it
Not another quiz app — a study system built around how memory really works.
Spaced repetition
Rate each card Again / Hard / Good / Easy and adaptive review resurfaces it right before you'd forget — so reviews compound into long-term memory.
Start a review session →[] it never re-runs, and cleanup fires on unmount.Build your own decks
Author cards by hand, paste a spreadsheet, or drop in an article and let AI write the flashcards. Tag, color, and study instantly.
Create a deck →useMemo cache between renders?Quizzes
Generate a fresh quiz on any topic and test recall under pressure. Instant scoring with explanations shows you exactly what to revisit.
Take a quiz →[...arr] produce?Progress analytics
Accuracy trends, mastery by track, an activity heatmap, and weak-spot drills that target exactly where you're losing points.
See your dashboard →From zero to a daily habit in minutes
Pick what you're learning, study a little every day, and let the system handle the timing.
Pick your tracks
Choose what you're learning — JavaScript, Python, React, DSA, SQL, System Design — and set a daily goal.
Study with spaced repetition
Flip cards and rate how well you knew each one. We schedule the next review at the perfect moment.
Let AI close the gaps
Quiz yourself, ask the tutor anything, and drill the exact topics where your accuracy is slipping.
Free today. AI-powered Pro is on the way.
Study core decks and quizzes free, forever. Pro adds an AI tutor, AI-generated quizzes, and article-to-deck — launching soon.
- All 30 curated tracks & the question bank
- Spaced-repetition study & quizzes
- Daily challenge & streaks
- Progress tracking & streak history
- Everything in Free
- Free for everyone during launch & beta
- Unlimited decks, cards & quizzes
- Advanced analytics & weak-spot drills
- Activity heatmap, achievements & priority support
- AI features
- AI tutor that explains the “why” behind any card
- AI-generated quizzes on any topic, in seconds
- Turn any article or notes into a deck with AI
- Instant AI explanations on every quiz answer
Start free now — you'll be first to know when Pro lands.
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