It opens to a Keychain screen that shows the name of your house. Tap the house name to open a screen with tabs for all installed August devices with the last captured still image for each video doorbell. To view a live stream, tap Watch Live to wake the doorbell up. Once awake, you'll see live video that you can view in full screen mode by turning your phone sideways. Tap the microphone button to initiate two way audio and the X button to return to the previous screen. There are four buttons at the bottom of the screen.