Are you a shift worker and can't organize your free time? Would you like to make an important appointment but you don't know if you will have to work that day or are you going to have a rest before or after a night shift? ShiftWorkers will be able to simplify your organization by generating working days on the calendar starting from the shift matrix! The definition of the matrix is ​​very intuitive: just choose the number of weeks on which the shift rotates and enter, with a simple tap, the var