Apps is pretty good and easy to use ( to ad shifts ) it has like auto fill ( if you put 2 itll auto fill to 2:00pm/am or 23= 2:30am/pm ) and well displayed of course for alerts and other fancy options you need to buy the "pro"
The free version works well for my need so didnt buy the pro so I dont know how it is with the fancy options thats why I only gave it 4 stars if it was free Ill most likely give it 5
Hopes this helps you in choosing ?
One more thing you cant delete a you put in your time already you can change it but not leave it blank again
Chewy9539 about WorkTime: Shift Work Calendar, v1.4