JamReady

Roller Derby Jam Timer

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

A simple, reliable roller derby game control app with local mode, CRG Scoreboard compatibility, and built-in vibration alerts for key timing moments. JamReady is a roller derby game control app for running jams, lineups, periods, and timeouts. It is designed to keep core bout operations clear and quick, whether you are using it in local mode or connecting to the community-standard CRG Scoreboard. A key feature of JamReady is vibration alerts, both for on-device games & when connected to a remote scoreboard. Instead of relying only on visual cues, the app provides haptic feedback at important timing thresholds (including end-of-clock situations), helping operators stay aware while multitasking during live gameplay. Features: - Controls for start jam, stop jam, timeout, and undo - Clock displays for lineup, jam, period, and intermission - Built-in vibration alerts for critical timing transitions - Local/offline mode - Remote mode compatible with CRG Scoreboard - Team panels with timeout and official review tracking - QR code support for remote setup JamReady was developed with support from the 501(c)(3) organizations Seattle Derby Brats and Rainier Roller Riot. Special thanks to both organizations for testing. Disclaimer: JamReady is an independent app and is not officially affiliated with the CRG Scoreboard project.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

- added an in-app reference guide for jam timer signals to help officials quickly look up timing calls

Version 1.1.0

The developer, RYAN NICHOLAS SMITH, 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
    • RYAN NICHOLAS SMITH
    Size
    • 31.6 MB
    Category
    • Sports
    Compatibility
    Requires iOS 13.0 or later.
    • iPhone
      Requires iOS 13.0 or later.
    • iPod touch
      Requires iOS 13.0 or later.
    • Mac
      Requires macOS 11.0 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 Ryan Smith
  • Privacy Policy

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