01Automatic learning gates that require mechanism-level reasoning to advance.
02Bilingual support (Korean and English) with beginner-friendly terminology mapping.
03Dual learning modes: Classic (explanation-first) and Mastery (challenge-first).
04Interactive 'Predict-Reveal-Restate' core loop for deep concept retention.
05Optional real-time Swift code execution to verify logic via the compiler.
0618 GitHub stars