Staged — Reaction Tree

Staged turns two iPhones into a drag-racing start tree. Pair with a nearby phone over a direct device-to-device link and both screens run the identical light tree, going green at the exact same instant. Launch on green: the fastest clean reaction wins. Jump the light and you red-light. Wait too long and you no-go. THREE WAYS TO RACE - Head-to-head: classic standing start, phone-to-phone. Countdown, tree, launch - your light against theirs. - Roll-on: both passengers hold the target speed; the tree arms only when you're matched. Closed courses only. - Practice: solo against the tree. Grind your lights and chase your personal best. A GENUINELY FAIR START Staged aligns both phones with NTP-style clock sync over a direct connection, then schedules one shared green. No lag tricks, no server round-trips - the tree is simultaneous on both screens. RACE THE WORLD (OPTIONAL) Sign in to go further: - Daily Challenge - one shared reaction puzzle a day, ranked on a global leaderboard - Weekly Cups & Monthly Majors - season-long championships - Crews - form a team and climb a crew-vs-crew ladder - Shareable race replays and live spectate links - Cloud backup so your garage and run history follow you to a new phone BUILT FOR THE STRIP - Millisecond reaction readouts - Jump-start (red light) and no-go detection - Launch by tap or hands-free motion detection - Start-line audio cues and haptics - Full run history with personal bests PRIVACY The core head-to-head race runs entirely on your device over a local connection - no internet required. Online features are optional and active only when you sign in; they sync data such as your display name and race results to power leaderboards, crews, and cloud backup. Read our privacy policy: https://staged.devbloom.dev/privacy SAFETY Never use Staged while driving. Roll-on mode is for passengers on closed courses only. Always obey traffic laws.