You can access the Rotas page on mobile by tapping the Menu icon in the top-left, then Rotas.
The mobile Rotas page shows the current month at the top, then the current Location just below. Underneath that, you'll see a horizontal date timeline which indicates the currently selected date with a white circle. Finally, you'll see the rota for the currently selected day.
To view the rota for a different Location, tap the name of the current Location, and select a new Location from the list.
To view the rota for a different day, use the arrows on the timeline to find the week you need, then tap the date you want to view.
You can request unavailability and shift swaps by tapping on the relevant shift.