Master Technical Interviews
Without the Burnout.
Stop grinding random LeetCode lists. Our deterministic recommendation engine prioritizes your weakest algorithmic patterns, enforces SM-2 spaced repetition, and provides progressive AI hints that guide without spoiling the solution.
Engine Architecture
Built for Rapid, Retained Mastery
Unlike static curated lists, our engine dynamically tracks your memory decay curve and mistake taxonomy to guarantee interview readiness.
Deterministic Daily Plan
Prioritizes due SM-2 spaced reviews first, then targets your historically weakest patterns before suggesting roadmap next-steps and curated explorations.
Progressive AI Hint Ladder
Never jump straight to the editorial. Request a Level 1 conceptual nudge (2 credits), algorithmic direction (2 credits), key data structure choice (4 credits), or pseudocode outline (4 credits).
SM-2 Spaced Repetition
Every attempt recalculates the question stability, ease factor, and repetition interval. Hard questions reappear sooner; mastered patterns space out over weeks.
Immutable Credit Ledger
Every credit deduction, grant, and refund is recorded in an append-only ledger with atomic database row-level locking.
Zero-Charge Guarantee
If the AI tutoring provider experiences a timeout, rate limit, or model error, your credits are automatically protected and never deducted.
Mistake Tag Taxonomy
Categorize failures by edge case omissions, off-by-one errors, or data structure misidentifications to eliminate blind spots.