The stoBBuhr app helps the basketball referees to stop the attack time, either in 5-on-5 or 3x3. In the clear display there are buttons for setting and immediately starting the 24 seconds, 14 seconds or 12 seconds. Various time-outs and breaks are also pre-programmed, which can be easily started using the corresponding button. The entire orange-red screen area can be used to stop and start the clock.