One More Second

Test your internal clock

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Ten seconds. No clock. How close can you get? One More Second is a ten-second test of your internal clock. Tap to start. Wait. Tap again when you think exactly ten seconds have passed. No clock, no countdown, no hints. Then see how close you got, to the hundredth of a second. Every round takes about as long as reading this sentence twice, so there is always time for one more. Chase a smaller number, climb from Way off to Sharp to Uncanny, and see if you can ever hit Perfect. • Tap anywhere: the whole screen is the button • Scored to the hundredth of a second, with a rating for every round • Your best and your last ten rounds, kept on your phone • Haptics and sound you can turn off • No account, no tracking, nothing leaves your device Works with VoiceOver, Dynamic Type and Reduce Motion.

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The developer, Crucible Technologies LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Crucible Technologies LLC
    Size
    496.6 KB
    Category
    Casual
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Crucible Technologies LLC
  • Developer Website
  • Privacy Policy