1. From the home screen, swipe down from the top of the screen to reveal the Device Settings menu.
   
2. Tap Settings.
   
3. Scroll to, then tap App Manager.
   
4. Tap Device Monitor.
   
5. To view overall data usage, tap CPU.
   
6. Overall data usage is displayed.
   
7. To view specific app usage, scroll up to the desired app.
   
8. Tap the desired app to view details.