ReflexJet is a brain benchmark app with 12 cognitive tests that measure your reaction time, memory, speed, and cognition. Get a composite Brain Score (0-100), track your progress with tier rankings (Elite, Fast, Average, Slow), challenge friends in multiplayer, and compete on weekly leaderboards. Tests include Reaction Time, Sequence Memory, Number Memory, Aim Trainer, Stroop Test, Chimp Test, and more.