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. Clique no botão de download para baixar a página.

2. Para arquivo APK normal, você pode fazer o download direto do arquivo ou pode escolher o download rápido do arquivo com nosso instalador.

3. Para arquivos especiais como XAPK ou BAPK, você deve escolher o download rápido do arquivo com nosso instalador.

4. Ao concluir o download do arquivo, você deve permitir que seu telefone instale o arquivo de um recurso desconhecido.

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