I need google calendar in order to get my schedule for work. Recently I tried installing the app so that I could get my schedule off my phone, rather than online. The app is just terrible. It took forever figure out how to add my calendar and when it finally did, it update any changes. I showed up for the wrong shift because the app doesn't update when my boss changes the schedule. So I have to go online, and then copy my schedule into my regular calendar. Useless.