Test App Setting

In the test App, the drop down menu of settings has the site url mentioned, will this site url be mentioned in the final APP download ? ideally i do not want to display the Site URL in the App settings Menu.
Is there any fix for this ?

Also, i have multiple apps for different clients, so for each of my client in order to push notifications, do i need a separate account for each of my client ? if yes, then i will need to pay for each of my client account…can someone throw some light on this…

tks