Boxing timer (stopwatch) is a free app designed for training as well as matches (box, MMA...).- simple interface and design of app Boxing timer,- setting up prepare time,round time and rest time, number of rounds- it is able to change number of rounds and length of roud in workout - setting sounds: start and end of round, countdown, half of round, XX sec. before end of round...Simply simple....just install Boxing timer (stopwatch), set up, click and fight or train:-)