You can change your app name in the App Settings screen.
You can enter up to 64 characters for the app name. You cannot leave the app name unspecified.

To change the app name, perform the following steps.

1. Click the app settings button at the upper right of the "View" screen.
   
   Opening the App Settings Screen

2. Click the app name to edit the name.
   Click outside the entry field to save the name.
   If the app name is too long, it will be truncated on the App Settings screen or breadcrumbs.

3. Click Update App on the upper right side of the screen, and click OK.