93% of coding interview questions follow just 14 patterns. Master them with spaced repetition and an AI mentor — and walk into your next interview knowing you'll pass.
Learn your first pattern in 5 minutes. No credit card.
Rex AI Hint (Coming Soon)
Two pointers converge when array is sorted. O(n) complexity!
You spent 2 hours understanding a solution, but a month later you can't remember the approach.
Solving random problems feels productive, but you're not building transferable skills.
You've solved 200+ problems but still panic when you see one you haven't seen before.
The difference between passing and failing a technical interview is massive. You need a system, not luck.
"I was there. 500+ LeetCode problems solved, 3 months of intense studying, and during the interview... blank."
The problem was clear: I was memorizing solutions, not understanding patterns. Every problem was an isolated island in my brain.
Then I discovered something that changed everything: there are only 14 patterns that cover 90% of interview problems. Not 500 different problems — 14 patterns. And by combining this with spaced repetition (the same technique polyglots use to never forget vocabulary), the game changed completely.
Recursely is the system I wish I had. Patterns + spaced repetition + an AI mentor guiding you in real time. No shortcuts — science.
Harlley Bastos
Founder, Recursely
It's not just solving problems. It's a complete system that guides you from zero to total confidence.
Interactive micro-lessons with analogies, visualizations, and 6 types of exercises — not just reading text.
FSRS algorithm schedules reviews at the perfect moment — right before you'd forget. Never relearn from scratch.
Follow guided sessions: understand, plan, implement, review. Rex AI mentor arrives after beta to guide you step-by-step.
Earn XP, maintain streaks, complete daily quests, unlock achievements. Gamification keeps you coming back.
Rex is a friendly dinosaur who knows you. He remembers your strengths, your recurring mistakes, and adapts help to your level.
Rex guides you without giving the answer — you discover it yourself
Each lesson has 6 types of Duolingo-style interactive exercises. You practice while learning, not after.
Test your understanding with instant feedback and explanations
Fill in missing parts of algorithm templates — like code Mad Libs
Drag algorithm steps into the correct order to build intuition
Walk through code execution step by step — predict the output
Animated visualizations pause and ask: what happens next?
Given a problem description, identify which pattern applies
Instead of memorizing solutions, learn the underlying patterns that appear in 90% of interview problems.
12 problems
10 problems
8 problems
15 problems
20 problems
8 problems
6 problems
10 problems
The FSRS algorithm schedules reviews at optimal intervals, proven to improve retention by up to 200%. The same science that powers Anki, built for algorithms.
Learn the 14 essential patterns covering 90% of interview problems. Each pattern comes with interactive micro-lessons and 6 types of exercises.
XP, streaks, daily quests, virtual currency (Bits), shop, reward chests, multi-level achievements, and animated celebrations. Duolingo-style, built for code.
One good interview can change your salary by $50k+. Choose your path.
Everything you need to start — zero risk.
The complete toolkit to land the offer
3-day free trial • No credit card required
The difference between passing and failing? A proven system. Not luck, not memorization — pattern recognition.
Join thousands of developers who stopped solving random problems and started mastering patterns.
No sign-up to try. No credit card required.
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