Airlines select cadet pilots with brutal cognitive tests: working memory, mental math, multitasking, spatial reasoning. Brain Preflight turns those mechanics into a daily trainer with 2-minute rounds — 17 exercises, ranks from Student Pilot to Captain, streaks, weakness diagnostic. Prepping a selection? Targeted program, countdown, mock exams. Fair warning: it's hard on purpose — if it feels easy, flight school is calling. Free tier, offline-first, EN/FR, no aviation knowledge needed.