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First time I was was penalty box manager I had two jammers sit down within 6 seconds of each other—didn’t have to remember the rules, just had to hit the right color buttons. Hopefully you’re not with one of those leagues that insists you use the traditional hourglass rather than an app. Bring a power pack for your phone tho.

I’ve been using this app for several years and it keeps getting better. There is no easier way to run a box. Now if it only did the paperwork.

I have been using a version of this app for almost seven years and have to yet to find anything better. It is constantly updated to the changes in rules and have always been solid.

Awesome app!!!

I know it says it has knowledge of the WFTDA rules, but is there any way to actually get this program blessed by WFTDA? I love this program, but I end up arguing with the refs because they want us to use those pain in the butt stop watches. Granted, the bylaws say we may use either the stop watches or an app, but here in MI, these people are still thinking like Fred Flintstone. If you could actually say that this is a WFTDA certified app, it would make all the difference in the world.... Thanks.

I loved this app. Please fix the crashing!

Will not open immediately crashes!

Updated to IOS9 and now the app will not work at all. I click on the app, it comes up and immediately closes.

This is great for scrimmages and are short NSOs! I have to wrestle with multiple timers-frustrating. This is an extreme improvements. App does what it's designed to do without any issues.

This is a great example of an app designed for roller derby that does exactly what it says it’s going to do.