I originally downgraded the app to 4 stars, as it has a quirk of sending some information to my Google calendar in German. Which I then had to edit in my Google Calendar. However, I don't know whether the developer acted on my email, I didn't get a reply, but the problem seems to be resolved now. The last few amendments I made have remained in English. So well done & thanks to the developer. This app is just about perfect for my rostering & shift work needs. I'll keep monitoring.
It's very simple to use and helps keep my 8 different shifts straight. But...the sync function definitely needs work. Almost impossible to sync between devices and you have to do it manually. Not the most user friendly in that aspect. Otherwise it's great.