# Lights Out: Top Reaction Test > Grand Prix Reflex Skill Game Canonical page: [https://chrome-stats.com/d/id6748250349](https://chrome-stats.com/d/id6748250349) ## Overview - **ID:** `id6748250349` - **Platform:** Apple - **Type:** Apple app - **Status:** Available - **Publisher:** Pour Investments LLC - **Category:** Action - **Rating:** 4.60 / 5 (13 ratings) - **Version:** 2.4.1 - **Last updated:** 2026-08-29 - **First published:** 2025-07-08 - **Size:** 218 MB - **Data as of:** 2026-09-28 - **Store listing:** [Apple App Store](https://apps.apple.com/us/app/lights-out-top-reaction-test/id6748250349) - **Website:** [https://gridreactiontimer.com](https://gridreactiontimer.com/) - **Privacy policy:** [https://gridreactiontimer.com/privacy.html](https://gridreactiontimer.com/privacy.html) ## Description Test your reaction time like in popular motorsport games. Wait for the five lights to turn on – release when they turn off. Can you react like a pro? HOW FAST ARE THE PROS? Lewis Hamilton has clocked starts under 0.2s. Bottas holds 0.201s and clocked 0.04s. Verstappen: 0.231s. Senna averaged 0.170s. NHRA Top Fuel: 0.039s. Usain Bolt: under 120ms. Average person? 250ms. Can you beat it? There are 4 game modes, global leaderboards, and a daily challenge that's the same worldwide. LAUNCH TIMER The classic race start. Five red lights build, a random hold, then blackout — tap the instant they go out. False start detection, millisecond timing, and comparison to real pro drivers. PIT LANE — CIRCUIT MODE 500 levels across five F1 championships. Twenty Grand Prix circuits per championship, five levels each, with Pit Wall gauntlets every 25 levels and qualifying bonus rounds along the way. Plus a daily challenge that's the same for every player worldwide. REACTION GRID A 3x3, 4x4, or 5x5 grid of targets. Tap them as they light up. Untimed mode tracks accuracy. Timed mode gives you 10 seconds. Six separate leaderboards track every combination. Plus AR MODE (3D gantry on any surface) and TWO PLAYER (split-screen head-to-head). PIT PASS Climb 45 tiers each season for cosmetics, profile borders, and bonuses. Season 1 — Monaco Night — is here: wet asphalt, neon reflections, and rewards inspired by the Grand Prix's most iconic night. Daily streaks, Game Center leaderboards with rolling weekly resets, 44 achievements, and detailed analytics. 11 racing team themes, 7 visual styles, custom app icons, and home screen widgets. Free on iPhone, iPad, Apple TV, and Apple Watch. 30 languages. ## Rankings - #297,986 — Overall ## Similar extensions and apps - [Lights Out - Reflex Training](https://chrome-stats.com/d/id6747769117) — 1.00 / 5 - [Lights Out Reaction Trainer](https://chrome-stats.com/d/id6759738226) — 5.00 / 5 - [Reflex: Reaction Time & Speed](https://chrome-stats.com/d/id6761295348) — 5.00 / 5 - [Race Start Reaction](https://chrome-stats.com/d/id6754540198) - [Driver Reflexes](https://chrome-stats.com/d/id6761014346) - [Racer Reflex](https://chrome-stats.com/d/id6766387972) - [Lights-Out](https://chrome-stats.com/d/id6738005311) — 5.00 / 5 - [Lights Out: Racing Game](https://chrome-stats.com/d/id6760106048) — 1.00 / 5 - [Paddock Play - Funny Game Box](https://chrome-stats.com/d/id6761289015) - [Driver Reaction Timer](https://chrome-stats.com/d/id6747767670) - [YOU FAST? – Reaction Time Test](https://chrome-stats.com/d/id6761732322) — 4.50 / 5 - [Reaction Time & Reflex: Reactz](https://chrome-stats.com/d/id6744872876) — 4.80 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/id6748250349)