The Basic hearing assessment, which checks audible hearing levels for six frequencies for each ear, is the default setting in the W&H BeHear app. The Advanced hearing assessment, which checks for most comfortable level in addition to audible level for these six frequencies, can be selected as follows:
Go to the Settings menu (located at the bottom of the app screen). Tap the Application icon. Scroll down to the Hearing Assessment Mode entry. Tap on the Advanced text so that the check mark appears next to it. Now, go to the Personal menu (located at the bottom of the app screen). Tap the Assessment icon to start the test.
Watch this video for step-by-step instructions.