一个番茄结束后自动退出！手机购买过,mac安装却要重复收费!,update(09.27.2016): It quits automatically everytime when a Break is finished.-----It is simple and easy to use. I frequently use it as a timer at work. I like it.But recently, after my Mac is upgraded to the macOS Sierra, it quits automatically very often, which is annoying.It quits at the time when a pomodoro is finished (not everytime). Wish the problem can be fixed.