GridReady: Reaction Trainer

Five red lights. Then darkness. Go. GridReady trains the one reflex every race start comes down to: how fast you react when the lights go out. Pro drivers live around 200 milliseconds. Find out where you are, then get faster every day. THE DAILY GRID Every day, every player gets the exact same five starts. One try, so it counts. Jump starts cost 100 ms. Your score is your median, and it lands on today's leaderboard next to your friends. RACE YOUR FRIENDS Friends and world standings run on Game Center. Challenge a friend to beat your Daily Grid or your best Lights Out time, and Apple tells you the moment someone passes you. FIVE DRILLS • Lights Out: the classic start. Pure reaction. • Apex: one corner lights up. Hit it. • Red Flag: black means go, red means hold. • Sectors: clear numbered markers in order, fast. • Quali Lap: every drill, mixed, faster each trial. New drills unlock as you level up. GET FASTER, SEE IT Your 30-day trend, personal bests for every drill, your best Daily Grids, and a straight answer to "am I faster than last week?" BUILT FOR TIMING Taps are timed from the moment your finger lands, against the exact screen frame the cue appears on, at 120 Hz on ProMotion iPhones. Anything under 100 ms counts as a jump start, because that's a guess, not a reaction. FEELS RIGHT Clean white, black and racing red. Haptics on every light and every hit. Small, sharp sounds that respect your silent switch. No ads. No accounts. Your progress stays on your iPhone.