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. Klik tombol unduh ke Halaman Pengunduhan.

2. Untuk File APK Normal, Anda dapat langsung mengunduh file, atau Anda dapat memilih unduh cepat file dengan Installer kami.

3. Untuk file khusus seperti XAPK atau BAPK, Anda harus memilih download cepat file tersebut dengan Installer kami.

4. Ketika Anda selesai mengunduh file, Anda harus mengizinkan ponsel Anda menginstal file dari sumber yang tidak dikenal.

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