Roller Derby Penalty Timer is the best mobile app created specifically for roller derby officials.

Typical stopwatches can be unreliable and cumbersome to use. Roller Derby Penalty Timer provides a reliable way to track penalties with built-in knowledge of the WFTDA ruleset for those tricky jammer situations. If you're short staffed at practice, managing the full penalty box is no problem!

Features:

Manage any configuration you'd like: two blockers, two jammers, four blockers, or even the full penalty box!

Stop all timers simultaneously between jams.

10 second warning, alerting you to tell the skater to stand up.

Tap-edit allows you to quickly edit a time or add a minute for a double-penalty.

Customizable colors to match the team uniforms.

Auto Airplane Mode for buying the paid version.

1. Haga clic en el botón de descarga para ir a la página de descarga.

2. Para el archivo APK normal, puede descargar directamente el archivo o puede elegir descargarlo rápidamente con nuestro instalador.

3. Para archivos especiales como XAPK o BAPK, debe elegir descargar rápidamente el archivo con nuestro instalador.

4. Cuando termine de descargar el archivo, debe permitir que su teléfono instale el archivo desde un recurso desconocido.

Major Updates include 30 second penalties and an upgraded interface.
Minor updates include faster code and a faster app in general.