One Second Run

Run one second longer

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

A quiet running timer that grows by one second each day. One Second Run helps you build a running or walking habit with a simple timer that grows by one second each day. Start with a comfortable first goal, complete today's timer, and tomorrow's target becomes just one second longer. The app keeps the experience light: no GPS, no pace charts, no account, and no pressure. Features: - Daily run or walk timer - One-second daily increase - Onboarding to choose your first start time - Streak and history view - Optional notes for each session - Local reminders - Live Activity and Dynamic Island timer display - Settings to reset progress or choose a new start time One Second Run is designed for consistency. Open the app, start today's timer, finish, and keep the line moving.

Ratings & Reviews

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The developer, SEONGHOON JEON, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

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
  • SEONGHOON JEON
Size
  • 31.3 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 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
9+
  • 9+
  • Learn More
  • Contains
    Advertising
    Health or Wellness Topics
In-App Purchases
Yes
Copyright
  • © 2026 SEONGHOON JEON
  • Developer Website
  • Privacy Policy

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