I have used a software that has allowed me to design and create a screensaver app for Mac OSX which I would like to submit to the Apple store. After completing the process the file ends up in the .app format. Is this the final format I need to submit to the Apple store through a Developer account? I am getting confused with Xcode, binary files, application loader etc. as I do not use any of this in the creation of the app and just end up with a finalized .app file. I didn't want to sign up for the developer account in order to submit without checking this first. Thanks for any help or direction.