About
A reflex game where players stop a timer precisely on target, featuring various timing modes and challenges. Compete with others online or test your skills through hundreds of levels. Boosters and daily rewards help you progress.
What's New in ZeroIn
1.1.3
October 3, 2026
• Boosters: Second Chance, Slow-Mo, Reveal Timer and Second Buzz • Daily rewards — and a way to save your streak • Season rewards: the top three get a month of Pro • See your ranking climb right after an online win • Minimize your table and play solo while friends join • Fewer, smarter notifications and many fixes
MoreSubscriptions & In-App Purchases
$3.99
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FAQ
What is ZeroIn?
ZeroIn is a stopwatch reflex game where you stop a timer precisely on target. It offers over 300 levels with various timing mechanics, including vanishing digits and math targets.
Does ZeroIn have ads?
Yes, ZeroIn contains advertisements. Users can remove ads by purchasing ZeroIn Pro, which also offers unlimited lives and other benefits.
Can I play ZeroIn with friends?
Yes, ZeroIn features online reflex duels where you can invite friends with a link and compete in real-time against up to 12 players.
What are the different timing modes in ZeroIn?
ZeroIn offers visible clock timing, vibration beats, fully blind timing, countdowns, and vanishing digits that appear for two seconds before fading.
How does ZeroIn track performance?
Every stop in ZeroIn is measured in milliseconds. Players can earn up to three stars per level, with gold awarded for stops under 10 ms.
Are there any special offers or rewards in ZeroIn?
Yes, ZeroIn provides daily rewards for lives, boosters, and bonus stars, and helps save your streak if you miss a day. The top players in monthly seasons win champion frames and ZeroIn Pro.
What devices does ZeroIn support?
ZeroIn is available on iPhone and iPod devices, and is suitable for users aged 4 and up.
How often is ZeroIn updated?
The latest version of ZeroIn is 1.1.3, and it was last updated on October 3, 2026, indicating regular updates for new content and improvements.
