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.
The tool was scanned for viruses and it was found 100% safe. RDNation designed this application that lies within the Sports category. The developer rolled out a new version of Roller Derby PenaltyTimer Free on Feb 23, 2014 and over 10K users downloaded and installed the app.
The tool has the average rating 4.4 on Google Play. There are ads in this application. Get the latest .apk file of Roller Derby PenaltyTimer Free 2.0.0 free of charge and have a look at users' reviews on Droid Informer. You will need 1 MB of free disk space to set up the app which is built for Android 2.3 and higher.
As users mention, the obvious drawback of the app is annoying advertising.
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