On Time vs ZeroIn

How well do you know 10 seconds? Press START. Count to ten in your head. Press STOP. Stop the timer at exactly 10.00 — no peeking. That's the whole game. Easy to play, hard to perfect. It's just you against your own internal clock. How close can you get? How to play • Tap START and start counting in your head • Tap STOP the instant you reach 10 seconds • See exactly how far off you were, then try to beat it Features • One-tap play — START, STOP, RETRY, nothing else to learn • Three modes — Normal, Blink (timer flashes), Blind (timer hides) • Infinite mode — Streak: tap at 1.00, 2.00, 3.00… without a miss; Challenge: clear stage after stage • Extended precision — chase 10.0000 down to four decimals • Global leaderboards — rank worldwide for the most 10.00 stops and the closest Extended stop, all-time and weekly, in every mode • Achievements to collect in every mode • 6 unlockable themes, earned through play or with Stars you collect • Daily quests and login streaks • Sign in with Apple or Google — keep your progress on any device • Clean, distraction-free design built for focus No luck, just your sense of time. Can you hit 10.00 on the dot?

ZeroIn is a stopwatch reflex game: the clock runs and you stop it exactly on target. Sounds easy — until the timer disappears. 300+ LEVELS • Visible clock, vibration beats, fully blind timing and countdowns • Vanishing digits that show for two seconds, then fade away • Math targets: if it's 3 × 2, stop the clock at 6.00 • Time estimation: feel 7.35 seconds without seeing a single digit TEST YOUR REACTION TIME Every stop is measured in milliseconds. Earn up to three stars, chase gold (under 10 ms) and unlock new START buttons with your points. ONLINE REFLEX DUELS • Real-time tables with up to 12 players • Invite friends with a link and rematch in seconds • Climb the global ranking and the monthly season MONTHLY SEASONS The top three of every season win a champion frame and a full month of ZeroIn Pro. BOOSTERS Second Chance, Slow-Mo, Reveal Timer and Second Buzz help you through the toughest levels. DAILY REWARDS Come back every day for lives, boosters and bonus stars — and save your streak if you miss a day. ZeroIn Pro: no ads, unlimited lives, double star points and the Black Hole button.