How long does the upload takes?
Sometimes Apple needs up to 24 hours to show the App within the web interface.Do I need to use my administrator account to do the upload?
No you can create a upload only account. (Guide coming soon.)Do I need to sign the App before the upload?
Yes.Which data do you save?
Your Apple-ID, password and IPA file are only saved until the upload is done. After the uplaod...Where can I do my App upload?