iOS Question can I have two apps on my iphone from b4i

I have an app on my iphone which works well,
I am working on another app that i am adding new functions
to.
When I compile the 1st app it installs on the iphone
when i compile the 2nd app it over writes the 1st app?

Is there a way to have more than one b4i apps on my iphone
as I work with and debug the 2nd app.
Just wanting to leave the working app alone?