There is a mobile view called Store Schedule that allows everyone to see all of the published shifts for the whole store.
To access: Click the menu button on the bottom right corner of your screen and select Store Schedule.
Anyone can see who is working on any day.
Use the day selector, or you can tap on a day (TUE) to toggle to that day.
If you click the > arrow on the right, you will see more details, such as who the person is working with that day.