JamTimer is a specialized app tailored for the dynamic sport of roller derby, specifically designed for the jam-timer role. It eliminates the need for traditional stopwatches by offering built-in configurations for various game styles like WTFDA, RDCL, or OSDA, while also allowing customization for different scrimmage or tournament setups.

This app streamlines all timing tasks crucial in roller derby matches, providing support for different game configurations and the flexibility to add custom settings. With user-friendly large buttons that are easily operable with one hand, JamTimer also includes vibrate alerts for specific game events, ensuring seamless timing management during intense roller derby bouts.