The Axsy Field Service Mobile App has a UI very similar to Salesforce's Field Service App.
For a breakdown of how to navigate the app and information on functionality, please explore Salesforce's Field Service guide: Using the Field Service Lightning Mobile App
1. When you first log in, you will be directed to the current day where a list of scheduled Service Appointments will be listed on the screen. This means you are currently in the Schedule tab.
2. Tap a Service Appointment to view its Overview, Details, Related List and Chatter Feed.
Tap the Notifications tab to view realtime notifications on-the-go when online.
Tap the Profile tab to view and manage Resource Absences.
From the Profile tab, tap the "gear" icon at the top of the screen to access Settings.