Aptile starts differently: a short calibration measures your cognitive profile (phonetic coding, analytical ability, associative memory), then silently adapts the method. Weak analytical ability? You get the rule first, not a guessing game. Strong memory? Fewer repetitions, more new material. No labels, no profile shown to you — just a path that fits how you actually learn. Built on research from Aptitude-Treatment Interaction (ATI) studies.